业主委员会作出的决定必须经全体委员人数的( )以上委员同意。
A.1/4
B.1/3
C.1/2
D.2/3
参考答案:C
He hasn’t slept at all for three days. _______he is tired out.[ ]
A. There is no point
B. There is no need
C. It is no wonder
D. It is no way
开口于上鼻道的是()
A.额窦
B.蝶窦
C.上颌窦
D.筛窦前、中群
E.筛窦后群