显微外科组织器官移植后，为防止血管痉挛，应保持室温在18℃左右为宜。()
参考答案：错
The news _____ Li Na became the silver medal winner of the Australian Open 2011 women's
event isn't surprising because she has the talent for tennis.[ ]
A. which
B. that
C. what
D. when
比较不同个体心脏功能时常用的评定指标是（）
A.每搏输出量
B.心排血量
C.心指数
D.射血分数
E.心力储备
