所有手术切口消毒顺序均以手术切口为中心,由内向外,从上到下。
参考答案:错
—What ____ does she like?
—Baseball. She ____ every day. [ ]
A. exercise; exercise
B. exercise; exercises
C. exercises; exercise
D.exercises; exercises
为明确和量化诊断二尖瓣狭窄最可靠的方法是()
A.胸部X线检查
B.心电图
C.超声心动图
D.心血管造影
E.心脏CT