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【判断题】
若7+8>18,则三角形有4条边。 ( 是 )A.
正确
B.
错误
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举一反三
【单选题】I'm very grateful for your help and hope to do something for you _____ in the future.
A.
in exchange
B.
instead
C.
in return
D.
in particular
【单选题】Speaker A: Yes, can I help you? Speaker B: ______
A.
Thanks. I'm very grateful for your help.
B.
We're just looking. Thanks.
C.
Yeah, can you help me with this experiment?
D.
Yes. Can you tell me how to get to the National Library?
【简答题】试述热凝树脂的制作义齿基托时产生气泡的原因有哪些?
【单选题】I’m very grateful to Professor Smith, without __________ help I would have never have got this far.
A.
who
B.
whose
C.
whom
D.
which
【单选题】为了合成CH3COCH(CH3)CH2COOH应采用乙酰乙酸乙酯和下列哪种试剂反应( )。
A.
碘甲烷和溴乙酸;
B.
3-氯丁酸;
C.
溴乙烷和溴乙酸;
D.
碘甲烷和溴乙酸乙酯
【单选题】I'm very grateful for your help and hope that some day I will be able to do something for you________. [ ]
A.
in exchange
B.
in turn
C.
in return
D.
in particular
【单选题】I’m very grateful to my high school teachers, without ______ help I wouldn’t be so excellent.
A.
whom
B.
their
C.
which
D.
whose
【简答题】热凝义齿基托树脂产生气泡的原因分析
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