单项选择题

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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单项选择题
______ but fools will believe what he said.
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C．Anything
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单项选择题
______, box cannot be lifted by a boy of five.
A．So a heavy
B．So heavy a
C．A such heavy
D．Such heavy a
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