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16、The patient needs           immediately,          , he would be in danger of losing his life.

A.to operate; otherwise                                   B.operating on; however

C.to operate; however                                    D.operating on; otherwise

 

 

16、D

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The patient needs           immediately,          , he would be in danger of losing his life.

A.to operate; otherwise                                   B.operating on; however

C.to operate; however                                    D.operating on; otherwise

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