一个人会因为蚊子叮咬而感染艾滋病吗?
参考答案:
不会因为蚊子叮咬而感染。
He apologized for ______ to inform me of the change in the plan.
A.his being not able
B.him not to be able
C.his not being able
D.him to be not able
缆车式取水构筑物由( )等部分组成。
A.泵车
B.坡道和斜桥
C.输水管
D.牵引设备