摘要：4．Good technique in medicine means less pain and fewer deaths and, ,it is our duty to master it. A.altogether B.therefore C.otherwise D.however 析:从上下文看.前后为因果关系.故应选B.
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Good technique in medicine means less pain and fewer deaths and, ________ it is our duty to master it．
- A.altogether
- B.therefore
- C.otherwise
- D.however
Good technique in medicine means less pain and fewer deaths and, _____ it is our duty to master it.
A. altogether B. therefore C. otherwise D. however
查看习题详情和答案>>Good technique in medicine means less pain and fewer deaths and, _____ it is our duty to master it.
A．Altogether B．therefore C．otherwise D．however
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