浮舌塔板的压强降比浮阀塔及固定舌形塔都低,操作弹性范围()。
A.介于两者之间
B.与两者相等
C.比两者都小
D.比两者都大
参考答案:D
A number of people suffer ill effects from drugs ______ they take the drug exactly as directed.
A.even though
B.as if
C.in case
D.in that
运输大巷一般布置在阶段的()。
A.上部
B.中部
C.下部