A-A+
A．The plane flies at high altitudes.B．The plan
问题详情
A．The plane flies at high altitudes.
B．The plane is filled with air.
C．The metal structure of the plane is very strong.
D．A small part of the plane cracks.
参考答案
正确答案：D
解析：细节题。短文提到，如果飞机中的一个小零件爆裂，飞机将在空中爆炸，故选D。
