体外循环后并行是指（）
A.开放升主动脉到停机
B.心脏复跳到停机
C.从复温到停机
D.心脏恢复窦性心律到停机
E.腔静脉开放到停机
参考答案：B
Chen Suqin, lecturer of Sun Yat-sen University, said many scientists in the USA and Europe study
medicine and biology using Harry Potter as case and that’s ______ she got the idea for her course
named “Harry Potter and genetics”. [ ]
A. there
B. when
C. what
D. where
汗液中水分含量可达（）
A.99%
B.95%
C.90%
D.85%
