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【简答题】
电力系统中性点有效接地方式指的是______。
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皮皮学刷刷变学霸
举一反三
【单选题】He _____ English for ten years by the time he takes the examination.
A.
will have been studying
B.
would have been studying
C.
will study
D.
studied
【简答题】elle porte une robe? non,
【简答题】A．He is the star player in his company. B．He takes the woman for his mother. C．He thinks the woman is a little wordy. D．He decides to give up joining the basketball team.
【简答题】How much money can an save if she/he takes the coach service instead of taxi to the city? . (A) 12 Australian dollars (B) 6 Australian dollars (C) 3 Australian dollars (D) 4 dollars and 50 cents
【简答题】By the time he takes the final exam, he more than five lectures in this semester.A. will
attend B. has
attended C. had
attended D. will
have attended
【简答题】Elle a une bonne amie.
【单选题】假基因是一种与功能基因(正常基因)有相似序列,但失去原有功能的基因.如图表示真核生物体细胞内假基因形成的两种途径.下列有关分析正确的是( )
A.
假基因与正常基因在染色体上的位置差别较大
B.
假基因能通过复制遗传给子代细胞或个体
C.
在自然选择过程中，假基因将很快被淘汰
D.
与原DNA序列相比，途径②获得的DNA序列比途径①获得的DNA序列更相似
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