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【简答题】
在一个装有3个和3个红球的袋子中摸球，每次摸3个球，摸到3个红球的可能性是______．
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反馈参考答案：
举一反三
【单选题】Why did Gail's father oppose their marriage?
A.
Because he hated Mark took his daughter away.
B.
Because he thought Mark was poor.
C.
Because he doubted that Mark intended to remain in the USA by marrying Gail.
D.
Because he would introduce a better man to her daughter.
【单选题】Why did Gail's mother disapprove their marriage?
A.
Because Mark's color is black.
B.
Because she was afraid of friends' talk.
C.
Because she didn't like Mark.
D.
Because she worried that Gail would marry Mark for the wrong reasons that she married her husband.
【单选题】听力原文：Why weren't you at the annual conference? (A) It's about the financial aid. (B) I thought it was next week. (C) Yeah, it was very informative. (40)
A.
B.
C.
【简答题】液力自动变速器中使用的离合器多数为多片湿式,主要由___、___、___和___等几部分组成。
【单选题】Why did Gail's mother disapprove of their marriage?
A.
Mark is black.
B.
Gail may be marrying Mark for the same wrong reasons that she married her father.
【简答题】土粒比重为2.68,孔隙比为1.0的土为疏松状态,发生流土的临界水力梯度是()
【简答题】对学术不端行为的认识误区。
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