肠内营养时,导致腹膜炎的原因是
A.空肠造瘘管滑入游离腹腔B.腹胀C.便秘D.腹痛E.胃排空迟缓
参考答案:A
Mr. Smith is very strict ______ everything ______ his students.[ ]
A. with; in
B. with; of
C. in; with
D. in; of
多子、少子