在仓房门窗、排风扇口、通风口等处布置和喷施（）等防虫剂。
A.防虫磷
B.溴氰菊酯
C.食品级惰性粉
D.磷化铝
参考答案：A, B, C
She is always ________ to help others at school and every other student wants to play with
her________.[ ]
A. willing; willing
B. ready; willing
C. willing; willingly
D. ready; ready
炸药的起爆、起爆能和感度？
