Seeing this, the empress also smiled, there are few people, just what she wants!

Otherwise, if there are many people, how can you be embarrassed to ask?

And at this moment, there are only four or five students in the school, except for Lin Siyu, who arrived in the classroom early in the morning in order to meet the empress earlier, the rest of the people are all important ministers.

Who should be asked in this case?

The empress rolled her eyes and made a decision in an instant.

Do you even need to think about it?

After asking those important ministers, when they came home from school, they said casually, doesn't it mean that those important ministers also know?

was known by the important ministers, the dignified empress, and asked these 'primary school students?' Where did the empress's face go?

In contrast, what happened to Lin Siyu, she is also her future sister-in-law, and she is barely a family, and it is much better to ask her than to ask others.

Thinking of this, the empress's face did not change, and she walked towards Li Siyu step by step.

Lin Siyu's gaze has been locked on the empress since the moment she appeared, and when she saw the empress coming, she was excited, excited, and her mood was difficult to calm down.

"Ahem. ”

When she came to Lin Siyu's side, the empress casually picked up a book on Lin Siyu's desk, and while pretending to read it, she showed an unnatural smile: "Siyu, speaking of which, I am also half of your elder." ”

As the saying goes, the eldest brother is like a father, and the eldest sister-in-law is like a mother, and the empress is naturally right when she says so.

"Yes, Your Majesty......"

But when Lin Siyu heard this, his face instantly darkened a lot......

So jealous digging!

ε=(′ο'*))))Alas......

is obviously the person he likes, but he is his brother's fiancée, woowoo......

Although Lin Siyu had a smile on his face, he was about to cry in his heart.

The empress didn't know so much, but she just felt that Lin Siyu's expression was a little strange at the moment. But as the empress, she didn't bother to think about anything, so she slowly spoke according to her own 'strategy'.

"Since I am also half of your elder, and Lin Zifan is not here at the moment, then I will represent him and come to test you to see how well you study, are you willing?"

"Test me?"

Lin Siyu was stunned for a moment, and then nodded again and again: "Yes, I am willing!"

Although it is similar to the existence of an 'exam', the 'examiner' is an empress!

Even if it's just to be able to say a few more words to the empress, Lin Siyu can't refuse, right?

"Okay, I'll just ask you a few random questions......"

The empress's face was indifferent, and the aura of the king was still leaking out unconsciously, but no one knew that the empress was flustered in her heart at the moment......

Kaukolind Siyu?

I'm sorry, the test is fake, and the knowledge you want from it is true~!

"First Question ......"

The Empress pretended to flip through the book, as if looking for a problem, and then asked, "How do you judge and grasp the exact size of a part?" ”

"Well...... this"

Lin Siyu's face was relieved, this question, she would!

Although I just want to communicate with the empress, if I can answer the questions and perform better, I will naturally be happier, right?

"Use vernier calipers!"

Lin Siyu smiled and spoke, very happy: "Mansion master...... Well, my brother said, vernier calipers are the most accurate measuring tools in the current era, which can accurately and conveniently grasp the size of a part!"

"Vernier calipers?"

The empress's eyes lit up, and it was obvious that she had already got some of the answers to the questions she wanted to know......

"So the second question, vernier calipers, how to use them?"

"Well...... this"

Lin Siyu looked left and right, ran to the side, took a vernier caliper for teaching, and then demonstrated it for the empress......

The empress looked at it very carefully, remembered all the usages that Li Siyu said, and then nodded slowly: "Well, what you said is good, it seems that you have indeed studied quite seriously, and then the third question ......"

One question after another was asked by the empress one after another, and Lin Siyu knew everything and said everything.

Especially whenever she answered a question, the empress's appreciative gaze made Lin Siyu feel beautiful~

"Well, that's all for today, the students are almost there, don't worry about me, you are busy yourself. ”

Seeing that the students were almost here, the empress put down her textbook, returned to the podium, and closed her eyes to recuperate.

But in fact, she was recalling what Lin Siyu said......

In Lin Siyu's view, the empress is testing herself.

But in fact, the empress is using this method to learn knowledge while saving her face......

Hmph, do you think I'm stupid and cute?

I'm sorry, but in fact, most of the time, I'm witty~!

But Lin Siyu's eyes rolled, but he was stunned to find that the book that the empress had just turned over was not a book related to vernier calipers and the like, but ...... Math textbooks?

However, there is no knowledge related to vernier calipers in math textbooks, right?

Lin Siyu blinked, very puzzled......

This day was spent without danger.

In the eyes of the students, it is still like a year, just because of ...... The empress is a substitute teacher and is responsible for supervising herself, can you believe it?

Only Lin Siyu felt that this time passed too quickly, and even felt that in the blink of an eye, the day was gone.

When all the students left, the empress left the school without a trace.

But no one found out that the vernier caliper used for teaching in the school was also stolen on this day......

In the evening, Qin Yafan and more craftsmen from the Ministry of Industry entered the palace and knocked and beat with the empress, all kinds of research ......

It's a pity that Lin Zifan didn't know everything that happened in Chang'an City, and their group was walking through the mountains according to the previous information and records, just hoping to find the two metals of copper and tungsten as soon as possible, and then get the copper wire and tungsten wire done.

Now that it is spring, many wild beasts and fierce beasts have also reached the season of 'estrus', which is extremely irritable.

It is quite dangerous to enter the deep mountains and old forests.

Fortunately, now Lin Zifan's strength is not what it used to be, and in the absence of outsiders, there is no need to hide and hide his strength or anything, so there are no accidents.

And when they set out on their way home, it was already half a month later......

For half a month, the empress would come to the school early almost every morning, and then she would also 'spot check' Lin Siyu every morning.

The questions asked are getting more and more difficult and deep.

At first, Lin Siyu could easily answer, but as time went on, she was shocked to find that she couldn't answer many questions at all......

There are even some nouns that I have never even heard of.

Although the empress never scolded her or blamed her, this made the strong Lin Siyu very uncomfortable.

I obviously want to show it to His Majesty, why can't I do anything now? It's so embarrassing......