某地区夏季气候凉爽,冬季寒冷,且年降雨量较少,则该地区气候分区可能是()。
A、3-4-1
B、3-2-3
C、2-2-1
D、1-2-4
参考答案:B
The man we followed suddenly stopped and looked as if _____ whether he was going the the right direction.
A.seeing
B.having seen
C.to have seen
D.to see
墙身水平防潮层要求至少高于室外地面()
A、150mm
B、200mm
C、250mm
D、300mm