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【单选题】
2mol甘油和3mol邻苯二甲酸酐体系中的平均官能度为多少A.
2
B.
2.4
C.
2.5
D.
3
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反馈参考答案：
举一反三
【单选题】患者，女性，30岁，昏迷在路边被警察送到医院，体检深昏迷，呼吸大蒜气味，急诊入院确诊为有机磷农药中毒。应用碘解磷定治疗有机磷农药中毒可( )
A.
解除平滑肌痉挛
B.
防治肺水肿
C.
抑制腺体分泌
D.
解除中枢神经系统的抑制
E.
恢复胆碱酯酶活性
【单选题】Mary was quite considerate of her husband______ she used to make coffee for him when he wrote in the dead night.
A.
in that
B.
if
C.
each time
D.
once
【单选题】—Do you know the woman who is wearing a beautiful hat? —Yes. She is _______ mother. She is a great writer. [ ]
A.
Tom and Mike's
B.
Tom's and Mike
C.
Mike and Tom
D.
Tom's and Mike's
【单选题】---Hi, Tom. Do you have any idea where Jane is? ---She _________ in the classroom. I saw her there writing her composition just now.
A.
shall be
B.
could be
C.
must be
D.
might be
【单选题】An infant can recognize a lot of sounds by the time he or she is a year old.
A.
Right
B.
Wrong
C.
Not mentioned
【单选题】. . I heard she _________ a book last year, but I don’t know if she has finished it.
A.
was writing
B.
wrote
C.
had written
D.
writes
【单选题】She said she _____ me five letters in one month. [ ]
A.
has written
B.
will write
C.
had written
D.
wrote
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