胃溃疡行胃大部切除术,一般应切除胃容积的()
A.30%~40%
B.60%~70%
C.40%~50%
D.70%~80%
E.50%~60%
参考答案:B
淤泥和淤泥质土的浅层处理宜采用( )。
A.水泥土搅拌法
B.换填垫层法
C.预压法
D.强夯法
Which pen is , this one or that one? [ ]
A. cheap
B. cheaper
C. cheapest
D. the cheapest