从施工的便利和材料选择以及基础耐久性的角度考虑,应当把基础埋置于地下水位以上不小于( )处。
A.100mm
B.200mm
C.300mm
D.400mm
参考答案:B
—__________ have you been in the sports club?
—Since the first month I came to the school.
A.How old
B.How long
C.How much
D.How soon
下列病理表现,因肾精亏虚导致的有
A.发育迟缓
B.智力低下
C.过早衰老
D.骨脆易折
E.发脱齿摇