Plane crash: Parachuting with classmates into mercenaries

Lin Chongyang and his classmates went abroad to travel. They suffered a plane crash and were forced to parachute. As a result, they accidentally landed on the battlefield and landed an ak.

At first, everyone panicked, crying for help and wanting to go home.

Later, in the hail of bullets, the students chatted and laughed:

“Hello? Mom, what’s the sound of gunfire? My classmates and I are fighting a gun battle. If I don’t say anything, I’ll hang up first and sign for Dongfeng Express…”

“The intersection of the parabola and the x-axis is (x1,0), (x2,0), the intersection of the parabola can be set as y=a(x-x1)(x-x2)…”

“Students, I have calculated the best parabolic point!”

“Brother, I asked you to make a body armor. What’s going on with this mecha?”

“Be careful, there’s a sniper at 13:00, I’m rubbing it, it’s the class deputy, why did he run across?”

“Wait, who are you looking at the food delivery guy on the battlefield? Sports Commissioner!”

[Learn mathematics, physics and chemistry well, and travel the world without fear! 】【war..