混合气体的爆炸极限只限决于组成气体的爆炸极限。
参考答案:错
Do you know ______________ had reported the accident to the police?
A.who it was that
B.who was it that
C.it was who that
D.that it was who
下图所示等压线图中,A、B、C、D各点风力最大的是()
A.A
B.B
C.C
D.D