In the bedroom, two girls are studying in front of the textbook.

"Oops, you're stupid, you can't do such a simple math problem." The younger girl said to the other girl.

Li Yuhan threw the ballpoint pen on the table and complained: "This formula is too difficult, and my teachers have never taught it." ”

Chang Beibei's eyes widened: "No, this is what we learned in our first year of high school, and you are in the third year of high school, aren't you?" Haven't learned such a basic mathematical formula? ”

"Nope! The textbooks on your mainland are too difficult to learn. Li Yuhan complained.

Due to the cultural differences between the East and the West, generally speaking, the knowledge system imparted by teachers in primary and secondary schools in country H is generally higher than that in Western countries.

The knowledge level of primary school graduates in country H is equal to the knowledge level of Western junior high school students; The knowledge level of junior high school graduates in country H is equal to the level of their high school graduates...... Push it up in turn.

High school students in country H are exposed to a lot of scientific knowledge, while high school students in the West can only be exposed to it in college. "The level of basic education and student literacy in country H are generally 2 to 3 years ahead of the West, and the field of mathematics is more than 5 years ahead" has become a common opinion issued by Western educators.

The college entrance examination in country H is the most difficult academic exam in the world, and students who have the ability to enter key universities in country H can be admitted to Ivy League colleges if they go to the United States.

It is said that there is a math problem for the college entrance examination in country H, which stumped many British mathematicians, in order to understand this math problem, they posted this problem on the Internet, offered a reward of 800 pounds, and asked someone to solve it, as a result, three days later, this problem was solved, and the solution to this problem was not a British, but a student from country H.

Although Port City is part of Country H. However, in the Western-style education, even the textbooks are imitated and published in the West, and the knowledge system is naturally slightly shallow and weak, and many advanced knowledge, such as calculus and three-dimensional geometry, are rarely taught by high school teachers.

Moreover, in order to maintain cultural differences, the script used in the port city is traditional Chinese, which is quite different from the simplified Chinese characters. Although most of the simplified characters are recognized, there are still a few simplified characters that are not well understood, so Li Yuhan also encountered some problems when taking Chinese classes.

Of course, it is a mess in mathematics, physics and chemistry, but for English, Li Yuhan is still relatively confident, and there is no problem with direct dialogue with foreigners. "Beibei, my English is very good, I don't need you to teach me."

As soon as he finished speaking, Chang Beibei took out a roll. asked her to do it, and the result was a 100-point paper, and after scoring more than 50 points, Li Yuhan was stunned on the spot.

"How could I just get such a score? I can get at least 95 points. ”

"The rolls you made. There are so many grammatical mistakes that appear, let me explain them to you. ”

After Yao Ming returned to China after playing basketball for a few years in the United States, he went to a university for further study for a period of time. In the entrance exam, I failed the English test...... He has been speaking English to the rice guy for a few years, and his English is not passing?

This is the exam-oriented education in country H, a qiē is subject to the standard answer, there is no zài "almost", "can be", and English is a more flexible language...... Once you encounter this kind of exam-oriented education, you are really a foreigner, and you have to fail the exam.

Most things, Li Yuhan almost had to learn from scratch, but there was no way, in order to stay here, she could only hurry up and learn hard, Chang Beibei's tutor was not enough to teach her, she asked Tianming to invite a few more tutors over...... This kind of hard study took everyone by surprise.

……

On the evening of January 1, Tianming took Lan Luo to Blue Mercury.

After coming out of Blue Mercury, in the past 20 days, Tianming added up, and the number of times he went to Blue Mercury was not more than 3 times, and the time he stayed each time was not long, which belonged to the nature of taking things, and he went to Blue Mercury today, mainly to see the situation over there.

"Whew" flashed, and dawn appeared on Blue Mercury.

It's still dark here, and the temperature is extremely low, minus 30 degrees Celsius.

"Z~!" , Even if I put on a thick cold-proof suit, Tianming still shivered from the cold, it was too cold here.

Sensing that dawn was coming, Elder Maiga immediately ran over and reported the situation to him.

"Your Majesty the God King, our fleet is trapped by an iceberg, and we can't get out!"

"What?!"

Tianming sensed it with his divine sense force field, and immediately understood why Elder Maiga said this.

When he had previously excavated the flask bay, he had not given much thought to the migration of the ice sheet.

The Arctic ice sheet advanced very fast, and in the days after Tianming left, it advanced outward for a full 500 kilometers, and the result was: in the process of advancing the ice sheet, the exit of the Flask Bay was quickly covered by ice, and the fleet was blocked inside.

At this time, the staff representative of the earthlings, Liu Xianjian, the captain of the Wenchang, also found Tianming and reported: "Commander, our nuclear submarine trial fleet has returned from a successful sea trial, but they are now trapped outside the bay, more than 200 kilometers away from us, and the outside is all thick ice, and they can't get in, and they are now suffering from fuel shortages, and the crew is also partially frostbitten, so you can bring them over." ”

I was depressed for a while, and I had only been out for a few days, and it was like a collapse here, with a lot of problems popping up.

But now is not the time to complain, and solving the problem is the most critical.

First of all, the flask bay had to be abandoned and moved to a place close to warm water, because there was ice in the bay, and the thickness of the ice sheet was more than 20 centimeters thick, and in order to ensure the smooth passage of the channel, two or three large living boats had to be in a state of navigation every day, crushing the ice sheet back and forth, acting as icebreakers, and preventing the continuous thickening of the ice sheet.

Even so, when Tianming ordered the ships to move, he still found that some ships had been fixed for too long, and a thick layer of ice had formed on the bottom of the ship, and the captain could not drive the motor to no avail, because the electric sprinkler device at the bottom of the ship was also frozen.

Tianming could only use his ability to de-ice these frozen ships, and after three or four hours of busyness, all the ships were finally able to start.

Finally, Tianming sat on the largest aircraft carrier, the Arixia, turned on the searchlights, and began to sail towards the outside of the ice cap, along the way. He used his ability to remove the ice cubes and ice in front of him, opening up a course, and the ships behind him followed one by one...... Five hours later, the entire fleet, one ship without pulling was brought to the open sea without ice.

Several ships of the trial formation waiting outside also joined the Grand Fleet. Many engineers and navy soldiers who were shivering from the cold on the trial ship hurriedly boarded the Youxia Aerospace Aircraft Carrier and went to a large air-conditioned room to rest and keep warm.

The climate expert said to Tianming: "Commander. We expect the expansion of the Arctic ice sheet to continue for about two months, with another 500 kilometers outward. Therefore, if another flask bay is opened, it may still face the situation of closing the port. ”

"So what to do?"

Completely different from what Tianming expected before the dawn, the ice sheet is not advanced "lineally", but "surface" advances, which also means. If another flask bay is excavated, it may only take a few days for a large amount of ice to form outside the bay. It is getting thicker and thicker, so that ships inside and outside cannot enter and exit, forming a "closed port".

"Let's not build an icebreaker again. Icebreakers can solve this problem. An expert said.

"It will take me four or five days to build a new ship, and I will stay here for a day or two at most." Tianming Road.

"Commander, I think it can be done. Put all the boats together, connect them in a row, and fasten them with ropes. Except for a few ships that cannot be fixed, let them be in a cruising state, most of the boats, in the state of iron cables, can advance and retreat together, so that the ship is stable, not to mention, when the ice sheet appears, it can also be launched together to rush out of the ice, which is much stronger than digging a new bay. Another expert said.

After listening to the expert's proposal, Tianming's eyes lit up, and he felt that this method was good, because the new living boats can be connected to each other through wires and charged each other, if these boats are connected together, when the power generation ship charges them, as long as one ship is replenished with electricity, other ships can also be charged through the wires, which is more convenient.

Moreover, the purpose of digging the bay is mainly to shelter from the wind and waves, and if the ships are connected together, even if the wind and waves are stronger, the impact on a single ship will not be great, and it will be stable as usual.

"Okay, just do as you say, and connect all the boats!"

Next, Tianming took a large number of Blue Star people to work for seven or eight hours in the cold wind, and finally connected more than 500 living boats together, like a white dragon, stretching for 2 kilometers.

Of course, in order to block the wind, Tianming still dug a bay out, the structure of this bay is very simple, it is a "凵" word, countless ice slags, ice cubes are piled together, piled up a "ice dam" that can block the cold wind on three sides, it is more than 20 meters high, this ice dam, although it can not block all the biting cold wind, but at least it has a certain effect of reducing wind and waves.

This bay is named "First-line Bay" in the morning.

After these things are dealt with, the biggest problem is solved, but there are still some problems that need to be solved by Tianming.

Qiu Aiguo, the captain of the nuclear submarine, said to Tianming: "Commander, our nuclear submarine has been here for three months, and all the projects to be carried out are basically carried out, and we can return to Earth." ”

Qiu Aiguo said that when he returned to the earth, he did not say that he would bring the nuclear submarine back to the earth, but that he would bring some real numbers back to the earth, such as the Julang four submarine-launched ICBMs, which were fired at 14 and 11 into 11, and the maturity of the missiles was not very good, and they found a lot of problems, and after sorting out these problems, they planned to give the experts on the earth side of the earth a reference and let them solve these problems.

"Okay, no problem, I can take some people out."

In addition, it is the problem of material security, and the people of Blue Star eat dried fish every day, and they will not be malnourished. But the earthlings can't, in addition to eating rice, wheat, corn and other staple foods, vegetables, fruits, milk and other foods are also essential, and the shelf life of vegetables and fruits is generally about 30-50 days.

"Alas, what a trouble, it looks like I'm going back to the base again."

After complaining, Tianming asked Lan Luo to count the list of various materials needed and took her back to Earth.

On January 3rd, Tianming told Meng Xinyi and them that he had a business to discuss and would leave the villa for a few days.

…… (To be continued......)