蒸发、蒸馏、干燥过程中都会遇到()方面有关要求。
A、传质
B、传热
C、辐射
D、A和B
参考答案:D
---Peter’s injuries were severe and he bled too much.
--- Yes. Ten minutes late______ he would have died.
A.but
B.or
C.so
D.and
无张力的颈部整形手术切口拆线时间可提前至()。
A.术后3天
B.术后4天
C.术后5天
D.术后6天
E.术后7天