作业帮The instrument ____ was not in the laboratory.
来源：学生作业帮 编辑：作业帮 分类：英语作业 时间：2024/05/15 23:48:32
The instrument ____ was not in the laboratory.
A.which the professor referred us
B.to which the professor referred us
C.to which the professor referred to us
D.which the professor referred to us
A.which the professor referred us
B.to which the professor referred us
C.to which the professor referred to us
D.which the professor referred to us
选D.固定用法refer sb/sth to sb/sth.此处refer the instrument to us.定语从句中用which 代替 instrument .
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The instrument was bought by my grandfather many years ago.
The instrument was bought by my grandfather many years
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In the beginning,there was not much_____,
英语翻译EXPERIMENTALReagentsODOPB was prepared in our laboratory
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