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【单选题】
在计算机操作系统中,若wait,signal操作的信号量S初值为2,当前值为-1,则表示有____个等待进程。
A.
0
B.
1
C.
2
D.
3
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【简答题】当工件以内孔定位时,常用圆柱芯轴作为定位元件,由于与工件内孔存在定位误差,其定位精度在____左右。
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【单选题】在肩峰端下缘,三角肌上部中央,肩平举时,肩部出现两个凹陷,前方凹陷中间是腧穴
A.
肩井
B.
肩髃
C.
肩髎
D.
天宗
E.
臂臑
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【简答题】听下面一段材料，回答第1-2题。 1. What has happened to the woman’s passport? A. It is nowhere to be found. B. It is packed in some bag. C. It is no longer valid. 2. Why does the man ask the woman to hurry? A. The p...
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【单选题】Directions:This section is to test your ability to understand short conversations. Why can’t the man call the woman’s name?
A.
Because they are strangers here.
B.
Because it’s the first time that the man  meets the woman.
C.
Because the man forgets the woman’s name.
D.
Because it is really a small world.
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【单选题】W: Did you see our job ad over the Internet or in a newspaper? M: Over the Internet. There are a lot of things out there. W: Why would you like to work for a company like ours? M: Well, from what I ha...
A.
He likes working in a team.
B.
He can learn a lot in his field.
C.
He wants to work with his friends.
D.
He is a quick learner.
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【单选题】Why is the woman’s brother under stress?
A.
He finds it hard to fall asleep at night.
B.
He finds it hard to concentrate on his study.
C.
He is trying hard to study engineering.
D.
He is trying hard to go to his ideal college.
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【多选题】Why does the man need the woman’s assistance? Click on 2 answers.
A.
He does not know the publication date of some reviews he needs.
B.
He does not know the location of the library’s vides collection of plays.
C.
He does not know how to find out where the play is currently being performed.
D.
He does not know how to determine which newspaper he should look at.
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【简答题】请听下面一段材料，回答第1-4题。 1. Who is Frank Stone? A. A friend of the woman’s. B. A visitor to the clinic. C. A patient of Dr. Milton’s. 2. Why won’t Mr Stone come to the clinic tomorrow? A. The clinic will be ...
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【单选题】Why did the professor consent to the woman’s request?
A.
He was in a hurry.
B.
He was impressed by her knowledge.
C.
He believes she is dedicated to philosophy.
D.
He wants to test the woman’s abilities.
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【单选题】关于烯烃,下列说法中正确的是( )
A.
烯烃分子中所有的原子一定在同一平面上
B.
烯烃在适宜的条件下只能发生加成反应不能发生取代反应
C.
分子式是 C 4 H 8 的烃分子中一定含有碳碳双键
D.
烯烃既能使溴水褪色也能使酸性 KMnO 4 溶液褪色
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相关题目：
【简答题】当工件以内孔定位时,常用圆柱芯轴作为定位元件,由于与工件内孔存在定位误差,其定位精度在____左右。
查看完整题目与答案
【单选题】在肩峰端下缘,三角肌上部中央,肩平举时,肩部出现两个凹陷,前方凹陷中间是腧穴
A.
肩井
B.
肩髃
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D.
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【简答题】听下面一段材料，回答第1-2题。 1. What has happened to the woman’s passport? A. It is nowhere to be found. B. It is packed in some bag. C. It is no longer valid. 2. Why does the man ask the woman to hurry? A. The p...
查看完整题目与答案
【单选题】Directions:This section is to test your ability to understand short conversations. Why can’t the man call the woman’s name?
A.
Because they are strangers here.
B.
Because it’s the first time that the man  meets the woman.
C.
Because the man forgets the woman’s name.
D.
Because it is really a small world.
查看完整题目与答案
【单选题】W: Did you see our job ad over the Internet or in a newspaper? M: Over the Internet. There are a lot of things out there. W: Why would you like to work for a company like ours? M: Well, from what I ha...
A.
He likes working in a team.
B.
He can learn a lot in his field.
C.
He wants to work with his friends.
D.
He is a quick learner.
查看完整题目与答案
【单选题】Why is the woman’s brother under stress?
A.
He finds it hard to fall asleep at night.
B.
He finds it hard to concentrate on his study.
C.
He is trying hard to study engineering.
D.
He is trying hard to go to his ideal college.
查看完整题目与答案
【多选题】Why does the man need the woman’s assistance? Click on 2 answers.
A.
He does not know the publication date of some reviews he needs.
B.
He does not know the location of the library’s vides collection of plays.
C.
He does not know how to find out where the play is currently being performed.
D.
He does not know how to determine which newspaper he should look at.
查看完整题目与答案
【简答题】请听下面一段材料，回答第1-4题。 1. Who is Frank Stone? A. A friend of the woman’s. B. A visitor to the clinic. C. A patient of Dr. Milton’s. 2. Why won’t Mr Stone come to the clinic tomorrow? A. The clinic will be ...
查看完整题目与答案
【单选题】Why did the professor consent to the woman’s request?
A.
He was in a hurry.
B.
He was impressed by her knowledge.
C.
He believes she is dedicated to philosophy.
D.
He wants to test the woman’s abilities.
查看完整题目与答案
【单选题】关于烯烃,下列说法中正确的是( )
A.
烯烃分子中所有的原子一定在同一平面上
B.
烯烃在适宜的条件下只能发生加成反应不能发生取代反应
C.
分子式是 C 4 H 8 的烃分子中一定含有碳碳双键
D.
烯烃既能使溴水褪色也能使酸性 KMnO 4 溶液褪色
查看完整题目与答案