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【简答题】
如图，在△ABC中，AB=AC，D为BC的中点，DE⊥AB于点E，DF⊥AC于点F，求证：DE=DF。
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参考答案：
举一反三
【单选题】retire
A.
上岗
B.
上班
C.
退休
D.
前景
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【判断题】78石墨化使钢中渗碳体在高温下自行分解为游离碳(石墨),它不仅消除了渗碳体原有的强化作用,并且使钢的韧性大为降低,以致引起脆性断裂。
A.
正确
B.
错误
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【简答题】阅读短文，选择正确答案。 Just before giving a wasteful party at his yard, the rich businessman had his swimming pool filled with poisonous snakes. He called the guests together and announced, 'To anyone brave eno...
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【简答题】A teacher stood in front of his history class of twenty students just before handing out(分发) the final exam. His students sat quietly and waited for him to speak. “It’s been a pleasure teaching you th...
查看完整题目与答案
【判断题】钢筋冷拉后,强度和塑性性能都有所提高。
A.
正确
B.
错误
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【多选题】下列属于商业银行资产类会计科目的是()
A.
存放中央银行款项
B.
同业存放款项
C.
贴现
D.
应收利息
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【多选题】下列属于商业银行资产类会计科目的是( )
A.
存放中央银行款项
B.
贷款
C.
清算资金往来
D.
汇出汇款
查看完整题目与答案
【单选题】Why did the wolves ignore the author's presence?
A.
Because his tent was out of the wolves' estate boundaries.
B.
Because the author has just arrived at the spot.
C.
Because the wolves were too busy to notice him.
D.
Because the wolves were afraid of strangers.
查看完整题目与答案
【单选题】Just before September,Miller was struck by a car andlost his right arm.I went to see him after he come back from 24
A.
school
B.
vacation
C.
hospital
D.
training
查看完整题目与答案
【简答题】A teacher stood in front of his history class of twenty students just before handing out the final exam. His students sat quietly and waited for him to speak. “It’s been a pleasure teaching you this t...
查看完整题目与答案
相关题目：
【单选题】retire
A.
上岗
B.
上班
C.
退休
D.
前景
查看完整题目与答案
【判断题】78石墨化使钢中渗碳体在高温下自行分解为游离碳(石墨),它不仅消除了渗碳体原有的强化作用,并且使钢的韧性大为降低,以致引起脆性断裂。
A.
正确
B.
错误
查看完整题目与答案
【简答题】阅读短文，选择正确答案。 Just before giving a wasteful party at his yard, the rich businessman had his swimming pool filled with poisonous snakes. He called the guests together and announced, 'To anyone brave eno...
查看完整题目与答案
【简答题】A teacher stood in front of his history class of twenty students just before handing out(分发) the final exam. His students sat quietly and waited for him to speak. “It’s been a pleasure teaching you th...
查看完整题目与答案
【判断题】钢筋冷拉后,强度和塑性性能都有所提高。
A.
正确
B.
错误
查看完整题目与答案
【多选题】下列属于商业银行资产类会计科目的是()
A.
存放中央银行款项
B.
同业存放款项
C.
贴现
D.
应收利息
查看完整题目与答案
【多选题】下列属于商业银行资产类会计科目的是( )
A.
存放中央银行款项
B.
贷款
C.
清算资金往来
D.
汇出汇款
查看完整题目与答案
【单选题】Why did the wolves ignore the author's presence?
A.
Because his tent was out of the wolves' estate boundaries.
B.
Because the author has just arrived at the spot.
C.
Because the wolves were too busy to notice him.
D.
Because the wolves were afraid of strangers.
查看完整题目与答案
【单选题】Just before September,Miller was struck by a car andlost his right arm.I went to see him after he come back from 24
A.
school
B.
vacation
C.
hospital
D.
training
查看完整题目与答案
【简答题】A teacher stood in front of his history class of twenty students just before handing out the final exam. His students sat quietly and waited for him to speak. “It’s been a pleasure teaching you this t...
查看完整题目与答案
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