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【单选题】
Wolff-Kishner反应应用的还原剂是
A.
Fe
B.
Zn
C.
NH 2 NH 2
D.
Na
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参考答案：
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【简答题】数控机床的加工特点是什么?
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【简答题】What is the Chinese meaning of “pun”? prefix="o" ns="urn:schemas-microsoft-com:office:office"? ?xml:namespace>A. 夸张 prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace> B. 拟人 prefix...
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【单选题】What __________ if there __________ no water in the world? prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace>
A.
will happen , was
B.
would happen, is prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace>
C.
happens , were
D.
would happen , were prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace>
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【单选题】What does the author say about Asimov’s robots? prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace>
A.
They know what is good or bad for human beings.
B.
They are programmed not to hurt human beings. prefix="o" ns="urn:schemas-microsoft-com:office:office"? ?xml:namespace>
C.
They perform duties in their owners’ best interest. prefix="o" ns="urn:schemas-microsoft-com:office:office"? ?xml:namespace>
D.
They stop working when a moral issue is involved. prefix="o" ns="urn:schemas-microsoft-com:office:office"? ?xml:namespace>
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【单选题】What is the poster about ? prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace>
A.
Finding a job
B.
A new film
C.
Discounting prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace>
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【简答题】What does “flashback” mean? prefix="o" ns="urn:schemas-microsoft-com:office:office"? ?xml:namespace>A. 倒装 prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace> B. 倒退 prefix="o" ns="u...
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【简答题】程序员通常处理异常的两种方法是使用try{}、catch(){}块和 ______________ ______________ ______________ ______________ 。
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【单选题】What does it mean ? prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace>
A.
成功
B.
建议
C.
意思 prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace>
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【单选题】What does the author say about Asimov’s robots? prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace>
A.
They know what is good or bad for human beings.
B.
They are programmed not to hurt human beings. prefix="o" ns="urn:schemas-microsoft-com:office:office"? ?xml:namespace>
C.
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D.
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【单选题】What is the poster about ? prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace>
A.
Finding a job
B.
A new film
C.
Discounting prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace>
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【简答题】What does “flashback” mean? prefix="o" ns="urn:schemas-microsoft-com:office:office"? ?xml:namespace>A. 倒装 prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace> B. 倒退 prefix="o" ns="u...
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【简答题】程序员通常处理异常的两种方法是使用try{}、catch(){}块和 ______________ ______________ ______________ ______________ 。
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【单选题】What does it mean ? prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace>
A.
成功
B.
建议
C.
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