地下室或地下构筑物外墙有管道穿过的,应采取防水措施,对有()级防水要求的建筑物,必须采用柔性防水套管。
A.1
B.2
C.3
D.4
E.6
参考答案:A, B
Everybody needs calcium, but it is quite possible for a similar person to be totally healthy by eating only________.
A.as half much
B.as much half
C.half as much as
D.half as much
某一患者剧烈腹痛,检查发现P-AM为正常值的10倍,应首先考虑的疾病是()
A.急性肾炎
B.急性肝炎
C.慢性肝炎
D.急性胰腺炎
E.脂肪肝