有机磷中毒患者的死亡原因主要为______。
参考答案:呼吸衰竭
–How far apart do they live?
–_____ I know, they live in the same neighborhood.
A.As long as
B.As far as
C.As well as
D.As often as
冻结孔的布置圈径应考虑()。
A.冻结厚度
B.冻结深度
C.地层含水量