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【单选题】
在间歇反应器中进行一级如反应时间为1小时转化率为0.8,如反应时间为2小时转化率为( ),如反应时间为0.5小时转化率为( )A.
、0.9、0.5；
B.
0.96、0.55；
C.
0.96、0.5；
D.
0.9、0.55
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举一反三
【单选题】Ken Sato is Japanese. He's from ______. He can speak ________ and English.
A.
Japan/ the United States
B.
the United State / Japan
C.
Japan/ Japanese
D.
Japan/Japan
【单选题】听力原文：(Man) Where should I send the revised version of the contract? (Woman) (A) He's probably from the United States. (B) I think my home address would be best. (C) Yes, the last page has five mistake...
A.
B.
【单选题】—Jim is ________ American boy, right? —Yes. He's from ________ United States.
A.
a; the
B.
an; the
C.
a; a
D.
an; a
【简答题】阅读理解。 Mario lives in Chicago, and he comes from Italy. He's married with two children, Sal and Made. His wife, Connie, is also Italian, but she was born in the United States. Mario and Connie are big ...
【单选题】He's from the United States.He's____________.
A.
English
B.
American
C.
Spanish
D.
French
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