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【单选题】
Which statement is not correct about constitutive genes?A.
The expressive products of constitutive genes are absolutely necessary in all over life process.
B.
The expression of constitutive genes is much affected by environment factors.
C.
The constitutive gene expression is only effected by interacting between promoter and RNA polymerase.
D.
Constitutive gene expression is continual in most cells.
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【单选题】His play was popular and every time ______about it, he owed his success to the support of his friends.
A.
talking
B.
talked
C.
to talk
D.
when talking
【单选题】离婚时，原为夫妻共同生活所负的债务，清偿时以（）。
A.
夫妻一方的个人财产清偿
B.
夫妻共同财产清偿
C.
离婚后由有偿还能力的一方的个人财产偿还
D.
家庭共同财产清偿
【单选题】It was more than he could bear when his old friend ______ him to accept a cigarette.
A.
invited
B.
urged
C.
persuaded
D.
agreed
【单选题】财政支出增长的弹性系数是指()。
A.
财政支出与GDP之比
B.
财政支出增长率与GDP增长率之比
C.
财政支出增长额占GDP增长额的比例
D.
当年财政支出与上年财政支出之比
【单选题】He would have finished his college education，but he had to________and find a job to support his family. [ ]
A.
quit
B.
decline
C.
depart
D.
reserve
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