暗挖法施工杂填土的开挖分层厚度为()。
A、1~3m
B、2~4m
C、0.5~2m
D、6~8m
参考答案:D
—Would you mind my coming over and having a look at your new garden? My little son's curious about those roses you grow.
—________.You're welcome.
A.Yes,I do
B.Never mind
C.Yes,please
D.Not at all
对乙肝病毒感染具有保护,预防作用()
A.血清仅HBsAg阳性
B.血清中检出抗-HBs
C.血清HBsAg、HBeAg和抗-HBc均阳性
D.血清中HBsAg阳性,并检出抗-HBs
E.血清中HBsAg阳性,并检出抗-HBc