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【单选题】
大容量锅炉的炉膛容积热强度，比中小容量锅炉的炉膛容积热强度______。A.
大
B.
小
C.
相等
D.
可能大，可能小
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【简答题】Rewrite each sentence with the word or phrase in brackets, keeping the same meaning. The first part has been written for you. As a result of the rapid advance in the gene therapy, cures for cancers ma...
【单选题】If you warn me _____ , I’ll have your order ready for you.
A.
in brief
B.
in return
C.
in advance
D.
In general
【单选题】If you put a gene in a virus, the next step in genetic modification would be
A.
insertion of a plasmid.
B.
transformation.
C.
transduction.
D.
PCR.
E.
Southern blotting.
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