产褥感染最常见的病理变化为
A.急性外阴、 * * 炎B.急性盆腔腹膜炎C.急性子宫内膜炎、子宫肌炎D.弥漫性腹膜炎E.急性盆腔结缔组织炎
参考答案:C
You _____ down everything I said! You can find it on this sheet I’m handing out.
A.shouldn’t have taken
B.must not have taken
C.cannot have taken
D.needn’t have taken
二氧化碳气体是一种().
A、无毒气体
B、微毒气体
C、剧毒气体