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【单选题】
下列说 法中，不正确的是A.
双原子分子中的共价键，一定是非极性键
B.
非极性键也可能存在于离子化合物中
C.
分子间作用力，又叫力，它比化学键要弱得多
D.
共价化合物在液态时不能导电
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举一反三
【简答题】在什么样的条件下，你预期HGPRT(次黄嘌呤-鸟嘌呤磷酸核糖基转移酶)有缺陷的细胞会影响到嘧啶核苷酸的生物合成？你如何估计动物体或人体内嘧啶核苷酸生物合成的速率？
【单选题】The boy students in this school are nearly______as the girl students to say hey intend to get a college degree in business.
A.
twice as likely
B.
likely as twice
C.
as twice likely
D.
as likely twice
【简答题】The boy students in this school are nearly ________ as the girl students to say they intend to get a college degree in business. A) as likely twice B) likely as twice C) as twice likely D) twice as li...
【单选题】商业银行等金融机构在中央银行的准备金存款包括( ) (1) 定额存款准备金 (2)任意存款准备金 (3)超额存款准备金 (4)法定存款准备金 (5)限额存款准备金
A.
（1）（2）
B.
（3）（4）
C.
（1）（3）（4）
D.
（1）（2）（3）（4）（5）
【简答题】商业银行等金融机构在中央银行的准备金存款包括几个部分？
【单选题】The boy students in this school are nearly as the girl students to say they intend to get a college degree in business.
A.
as likely twice
B.
likely as twice
C.
as twice likely
D.
twice as likely
【单选题】The boy students in this school are nearly______ as the girl students to say they intended to get a college degree in business.
A.
as likely twice
B.
likely as twice
C.
as twice likely
D.
twice as likely
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