钢支架、钢座架应根据货物形状、重量、()等条件制作。
A、长度
B、使用材料
C、使用车辆
D、装载情况
参考答案:C
The top detective asked the witness if he had seen _______ at about 10 p.m.____.
A.something unusual , last night
B.unusual something , the night before
C.anything unusual, last night
D.anything unusual , the night before
在灭火指挥的原则中,组织决策的基本要求是()
A.迅速、周密
B.及时、果断
C.调查、决定