Jiang Na opened her eyes in a daze, and the room was pitch black.

She covered her stinging forehead, fumbled to turn on the chandelier in her bedroom, and looked at the familiar furnishings at home before gradually calming down.

Since the cruise ship was lifted in the morning, she felt dizzy.

After the temporary epidemic prevention treatment transfer vehicle sent her home, Jiang Na slept until now.

Pull out your phone.

She browsed through all the news about the Platinum Star Cruises, looking at the familiar and unfamiliar news, she couldn't believe that all this was related to herself, no, to be exact, it was she who personally solved this huge infectious disease crisis!

"Public Health ...... 7472, hiss......"

Thinking of this, Jiang Na felt a tingling in her brain, she got up and took out the painkiller from the drawer, drank water, and went to the desk in the bedroom.

It is densely packed with books on all kinds of nursing: physiology, pathology, medical psychology, preventive medicine, and emergency care......

These are all professional books that she needs to study as a nurse undergraduate, but there is no "Public Health" in it, but "Preventive Medicine" has many things in common with the former, except that the former focuses more on command and management, and the latter focuses more on clinical theory.

I guess I reviewed it when I was in the hospital before......

Jiang Na took out "Preventive Medicine" and turned a page at random, which read: Section 3 (Environmental Pollution and Health Impacts), and suddenly, a lot of knowledge about public health and disease prevention was rapidly recovering.

Finally, it was the evening of the seventh day.

Gu Ji sat on the bed in the temporary dormitory of the base, and couldn't wait to open the game inventory, and two iron-framed wooden treasure chests were eagerly standing there, seemingly waiting for him to unlock them.

[Do you spend 2 Crisis Points to open all treasure chests?] 】

【Yes!】 】

He rubbed his palms, and in the next second, the two treasure chests began to shake violently, and as the wooden planks shattered, dazzling white light burst out from inside:

[Congratulations on obtaining the White Mark: Combat Mastery (S), Special Driving Mastery (S)!] 】

Gu Ji's eyes lit up suddenly.

These two sigils are almost the most useful rewards in the cruise level, and it seems that the limited treasure chest is really easy to open good things!

It's a pity that he only has one card slot left, and once it is inlayed, it costs 1 crisis point to replace it with a new one, and if two sigils are moved to the third sigil at the same time, the synthesis will be triggered.

Gu Ji is not enough to synthesize the required points now, and even if he has, he doesn't dare to gamble.

After struggling for a moment, he still decided to choose the inlay martial arts mastery, which has a wider applicability than driving.

With the blessing of 10% combat level, combined with the CQC skills of the Flying Tigers, his close-quarters combat level, especially in cold weapons, has once again improved to a higher level.

……

……

"Safety!"

Gao Bo quickly glanced at the entrance of the lower alley with his gun.

In the police training base, the topic of today's police practical training is to break down the door and rescue the hostages, and Gu Ji, as the second training team, is leading people to shuttle through the simple "killing house" arranged at the base.

After more than ten days of intensive professional training, all police officers have already entered the state.

However, thanks to the continuous attribute enhancement of the game system, Gu Ji is currently the one who has improved his level the fastest.

After getting close to the core point of attack.

He stretched out his arm, palms facing the team, and the team immediately stopped standing still, "Observe the hand!" ”

A round-faced police officer carries a speculum device that resembles a rifle, and pokes a metal speculum as small as a bamboo stick through the crack at the bottom of the door, and as the black image gradually disappears, several pairs of boots appear in the center of the frame.

He carefully withdrew the device and pulled it back, and said in a suppressed voice:

"There are two robbers in the room, both on the left, and there is a hostage in the hands of the robbers."

"Prepare to break down!"

Gu Ji decisively gave the order, and a tall and sturdy police officer carried a heavy cylindrical black door breaking hammer and walked lightly to the wall at the door of the room.

This is one of the practical skills to be examined today: breaking through the door coldly.

Anyone who understands tactical offense knows that there are two types of goal-breaking methods.

Cold breaking door: technical door opening, door hammer, hydraulic pliers, crowbar, sandless gear saw, etc., the advantage is that it is relatively safe and has low technical requirements, but the efficiency is slow, and it is impossible to break the heavy metal security door.

Thermal breakdown: shotguns, C series explosives blasting, and water bomb breaking, the advantage is that there is no door that cannot be broken, and the disadvantage is that the technical requirements are high, and it is easy to injure yourself by mistake.

Both have their own advantages and disadvantages, and they need to be selected according to their own tactical level and the actual situation on the spot.

The room in front of me is a wooden door.

"Three, two, one!"

Bang——!

The last command was shouted, and the strong police officer slammed the hammer and slammed it into the lock of the wooden door.

In an instant, sawdust splashed, a crack in the door shone through, Gao Bo and Gu Ji quickly seized the opportunity to rush in, delayed for half a second, banged a few shots, solved the gangsters, and the hostages were also brought down.

And at the moment when the hostage fell to the ground, a round black object suddenly rolled down to the feet of the two.

"It's a grenade! Hostage protection——! ”

Gu Ji glared and roared, kicked the grenade away, and immediately turned around and pounced on his teammates.

"Stop!"

At this time, Zhang Wenjun, who was watching the battle on the second floor, interjected, and the police officers who played the gangsters and hostages got up and left the scene, leaving only a few people standing in the room.

"Sun Zhibin, your posture before breaking the door is wrong, most of your whole body is exposed, if you let the gangsters hear the movement, you can be killed through the wooden door, Gao Bo, you should practice more in your steps, don't take backward and backward cross steps, how many times have you emphasized it!"

At the end, Zhang Wenjun's stern eyes glanced up and down at Gu Ji:

"Gu Ji, as a tactical commander, in the face of a small space, why don't you remind the team members to change their pistols? The back elbow of his rifle obstructs your second entry time, which is the half second, giving the gangsters a chance to push away the hostages and grenades, and why did you kick the grenade away in the end, don't you know the power of the grenade's explosion in the house? ”

Wu Kang, who was watching the drill on the sidelines, couldn't help but almost laugh.

In the past few days, Zhang Wenjun reprimanded Gu Ji in class as soon as he seized the opportunity, no, he threw the black pot of this actual combat training on Gu Ji's head.

Gu Ji pondered for a moment:

"The instructor is right, I really should take this into account, as for kicking the grenade, because I think it is the best solution at the moment, there is nowhere to dodge in a narrow space, kick the grenade to a place where no one is as far as possible, and use your own equipment and dodging posture to reduce the chance of death, which is the safest way."

"Why didn't you dodge, but turn around to protect your teammates?"

Zhang Wenjun immediately asked.

Gu Ji hesitated.

"I ...... It's instinct, instructor! ”

"Instinct? You are the tactical commander and the core of the team, and you are the one who should abandon all distractions and command the whole team to save the hostages, instead of acting on your will, to glorify your ancestors and become an unsung hero! ”

Zhang Wenjun reprimanded Gu Ji word by word.

The other police officers couldn't listen to it, and it was wrong to protect their companions?

Everyone couldn't help but feel a little distressed for a while, did they offend Instructor Zhang, and why was they so harsh on him alone.

But in the next second, everyone withdrew this sympathy.

Li Ruilin on the side looked at Gu Ji, and suddenly laughed:

"Hehehe, Wen Jun, I think Gu Ji's spirit of unconditional trust and selfless dedication to his companions is worthy of encouragement, and the flaws are not hidden, Gu Ji, continue to work hard next time!"

Boy.

The chief instructor of police combat training, the head of the special police detachment of the municipal bureau, personally named and encouraged.

What the hell is this kid coming from?

Even Wu Kang couldn't help but look at Gu Ji and Li Ruilin twice.

"Yes...... Chief Instructor. ”

Gu Ji scratched his head, pretending not to see the little expressions of the two old foxes singing and harmonizing.

"Alright, that's all for today's lesson!"

Li Ruilin waved his hand, and the police officers immediately cheered and left.

After the others walked away one after another, Zhang Wenjun's tense face suddenly broke his strength, "Li Zhi, this white face is not easy to be, this kid is making too fast progress, at this rate, I really can't find anything wrong." ”

"This kid does have something, not as good as the old Lei of the year......"

Li Ruilin put away his smile and sighed.

But Zhang Wenjun was shocked when he heard it, the old Lei in Li Zhi's mouth was the deputy captain of the Dragon and Tiger Commando, the trump card of the Ningzhou City Special Police, and the country's top anti-terrorism expert!

Meanwhile.

Toei, Hokkaido City Shinkansen Station.

The door opened, and the passengers crowded out of the bus, and in the middle of the crowd, there was a long-haired woman in a white T-shirt and a black peaked cap, staring at a map on her mobile phone, which showed the name of a clinic: Saijo Psychological Clinic!