根据军委办公会议决定，炮兵工程学院自65年起，划归（）领导。
A.国防科工委
B.中央军委
C.教育部
D.工业和信息化部
参考答案：A
I often help my mother _______ clothes.
A．wash
B．washing
C．washes
D．washed
Emergency line operators _______ always stay calm and make sure that they get all the information they need to send help.
A．can
B．would
C．must
D．might
