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【单选题】
使下列反应能进行的试剂是:A.
Na/NH 3
B.
NaBH 4
C.
LiAlH 4
D.
Na + EtOH
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反馈参考答案：
举一反三
【简答题】When he got off, he found he took a wrong train. He didn't find he toook a wrong train ______ he got off.
【单选题】He was so ______ on his book that he didn't find her come in.
A.
intent
B.
absorbed
C.
engrossed
D.
devoted
【单选题】Tom went hunting for a week but still he didn't find a room______.
A.
to live
B.
to live in
C.
for living
D.
to be living
【单选题】某液体的容重为 γ ( N/m 3 ),在液体内部 B 点较 A 低 1m ,则 B 点压强比 A 点压强大( ) Pa 。
A.
γ
B.
9800
C.
10000
D.
不能确定
【单选题】He didn't find ___________ in the suitcase.
A.
something
B.
anything
C.
nothing
D.
everything
【单选题】All reference books ________， he didn't find the key to the question.
A.
being searched
B.
searched
C.
to be searched
D.
were searched
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