Soon, the two planes arrived over Tianfu District. Li Baoqiang lowered the nose and slowly descended towards the Tianfu District compound. Then, after hovering over Tianfu District for three weeks, he turned around and flew towards the Jiange tunnel, and was about to return.

As he turned to leave, Li Baoqiang saw the crowd of people carnival in Tianfu District on the ground. It was estimated that the people in Tianfu District saw their fighter planes and the Civil Defense Forces' own air force. These people were all in ecstasy.

Li Baoqiang controlled the fifth primary and shook the wings three times, which was a greeting to the subjects below. This was the airplane etiquette he learned from somewhere. Seeing the people below swaying their arms again, cheering and excited, he was extremely satisfied. Li Baoqiang's vanity.

Seeing the movements of No. 2 First Teaching Fifth, Huang Kai smiled bitterly when he was accompanying No. 1 First Teaching Fifth, who was accompanying him.

Li Baoqiang is a great man, this is Huang Kai’s heartfelt evaluation.

Li Baoqiang had a beautiful revolving and began to return, but he was a little flew in the sky and could not grasp the course.

Huang Kai knew very well that being a pilot is not that simple thing. Being able to drive and ascend to heaven does not necessarily mean that he is a qualified pilot.

Astronomy, geography, physics, machinery, map recognition, meteorology and other majors, pilots must master it. There was a saying in the past life that the money spent on cultivating a fighter pilot can use gold to make a statue exactly the same as himself. That's true.

Huang Kai accelerated over Li Baoqiang's No. 1 First Class 5, flew in front, guiding No. 2 First Class 5 to return.

The blue sky and white clouds, the mountains are undulating, the earth is vast, and there are beautiful rivers and mountains.

Li Baoqiang was also excited. Li Baoqiang had some plans in his mind about how the Civil Defense Forces will develop and grow in the next step.

The two first-class trainees landed steadily on the highway before and after May 1st. When Li Baoqiang and Zhao Ying got off the plane, Huang Kai was already standing under the plane waiting for him.

Master Zhou Lin, Liu Junsheng, Li Jun, Wang Qiang and others rushed forward and raised Li Baoqiang and threw it into the air. The crowd was excited. Their commander created a miracle. At the same time, these people were also venting their dissatisfaction with Li Baoqiang because Li Baoqiang took off. During this period, everyone suffered great torture. The feeling of great sorrow and joy and unrest is unforgettable for the rest of their lives.

Li Jun quietly whispered a few words to Huang Kai. Huang Kai frowned and quickly stopped everyone loudly, giving a look at Li Baoqiang who had just landed.

Li Baoqiang waved to everyone knowingly: "Today's test flight is very successful. Tow the plane back for maintenance first, have a celebration wine tonight. Who? Zhao Ying, you report to Captain Li Jun. You are the first flight student."

After Li Baoqiang finished speaking, he walked aside with Huang Kai. The soldiers behind him surrounded Zhao Ying and asked this and that in a verbal manner, Zhao Ying looked proud.

"The explosion occurred in the Zangbing Cave. The specific situation is still unknown. Wang Zhiming has already rushed over."

Huang Kai said with concern.

"I'll go there immediately. Chief of Staff, you rushed back to Tianfu District immediately and take control of the Civil Defense Forces. Please,"

Li Baoqiang held Huang Kai's hand tightly, and everything was silent.

The Zangbing Cave is a large granary of the Civil Defense Forces Autonomous Region. Its status is very important. An explosion occurred there, and the two of them couldn't help but feel nervous.

Li Baoqiang drove alone and arrived at the Tibetan Bing Cave in Hope District two hours later.

Zhang Dajun, Wang Zhiming and Huayang, who looked sick, welcomed Li Baoqiang's arrival at the entrance of the Tibetan Bing Cave.

Li Baoqiang and Huayang had a brief conversation and then went straight to the door of the laboratory. The laboratory had been protected and did not receive much on the scene that it was considered to be damaged.

There is actually a stone cave in the laboratory, and there are plastic steel doors and windows at the door. Now the plastic steel doors and windows have been blown up, and the slag is everywhere.

Li Baoqiang entered the laboratory with his legs. The room was also messy, as if he had been robbed. There was no smell of explosives in the air, which made Li Baoqiang very suspicious.

Huayang was not seriously injured, but was hit by the shock wave and vomited a few mouthfuls of blood. There was no smell of explosives in the air, which ruled out the suspicion of artificially installing explosives.

Li Baoqiang glanced around and visited every suspicious point.

Li Baoqiang then looked for the explosion center. It was obvious that the laboratory pool was the explosion center. The sewer explosion should be caused by methane gas produced by rotten items. This is how the biogas pool at the original hope base produced methane biogas.

Li Baoqiang felt relieved. This was similar to what Zhang Dajun and the others reported just now, and he believed that the installation of explosives could be basically eliminated.

Suddenly, Li Baoqiang reached out and touched the surface of some items. A layer of mist floated on the surface of each item. Li Baoqiang put his fingers in his mouth and licked them, tasted the taste, which was very familiar.

Li Baoqiang's heart moved.

"Professor Hua, have you done any experiments recently?" Li Baoqiang turned around and asked Huayang.

"Doesn't do the experiment. Yesterday, I just came back from collecting microalgae samples from other places. I went back to the laboratory to check the cultivated microalgae, and then went home. I didn't have time to do the experiment."

Huayang recalled his experience yesterday and shook his head, but looked at the drain sink in the center of the explosion and suddenly thought of something.

"Yesterday I saw a bottle of microalgae samples. They reproduced very slowly and had no research value, so they poured them into the sink. Could it be that the microalgae had a chemical reaction? It shouldn't be that it's unscientific," he said.

Huayang answered Li Baoqiang nervously, as if he had thought about something, as if the truth was right in front of him, but he could never grasp the key points.

“Chemical reaction,”

Li Baoqiang knew it in his mind.

"Go and find a plastic bag," Li Baoqiang turned around and said to Wang Zhiming.

Huayang and Zhang Dajun glanced at each other, not knowing which drama Li Baoqiang sang.

Wang Zhiming quickly returned and handed it to Li Baoqiang with a black plastic bag in his hand, with a curiosity on his face.

"Everyone, it's time to witness the miracle," Li Baoqiang smiled mysteriously.

Zhang Dajun and Wang Zhiming looked at each other, and their heads began to become mysterious again, and Huayang seemed to understand something, looking thoughtful.

Li Baoqiang put the plastic bag on the opening of the exploded sewer. The deflated plastic bag slowly filled and expanded, and finally formed a small balloon.

"Everyone, the crime scene replay has begun,"

The laboratory door in front of him had blown into pieces and the air was unobstructed, so Li Baoqiang dared to play with his heartbeat.

He signaled everyone to flash to the side, took out the lighter, approached the plastic bag, and heard a small explosion sound, and black debris in the air were flying all over the sky.

Li Baoqiang picked up a piece of debris and handed it to Huayang.

"Professor Hua, try what the liquid on it tastes,"
Chapter completed!