原式=[(32)2-(6)2]÷6
=(18-6)÷6
=12÷6
=2.
放置IUD.术前,()可不作为常规检查。
A.子宫位置
B.子宫大小
C.子宫屈曲度
D.白带检查
E.B.超检查
Which would you prefer, tea or coffee? I prefer coffee ______ milk.
A.to
B.or
C.rather than
D.with