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【判断题】
由NPN管构成的的基本共射放大电路,输入是正弦信号,若从示波器显示的输出信号波形发现底部(负半)削波失真,则该放大电路产生了截止失真。
A.
正确
B.
错误
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参考答案：
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【单选题】听力原文：M: Sorry to trouble you. But is there any possibility of borrowing a blanket? I feel cold. W: I think we've got one. Could you wait until taking off please? What is the probable relationship betw...
A.
Customer and saleswoman.
B.
Neighbors.
C.
Passenger and airline hostess.
D.
Guest and receptionist.
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【简答题】Choose the correct answers. 1) How ____(do I , I can) telephone to Japan ? 2) — Would you like to have another cup of tea? — ____(No, thanks., Yes, please.) 3) She has no brothers ____(and , or...
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【单选题】—What else do you want? —_________ else. I think I have got everything now. [     ]
A.
Something
B.
Everything
C.
Nothing
D.
Anything
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【单选题】听力原文：M：Sorry to trouble you．But is there any possibility of borrowing a blanket? I feel cold． W：I think we've got one．Could you wait until after take-off please? Q：What is the probable relationship be...
A.
A guest and a receptionist.
B.
A passenger and an air hostess.
C.
A customer and a shop assistant.
D.
A lodger and a landlady.
查看完整题目与答案
【单选题】护士为卧床患者洗发时,操作不正确的是
A.
病室温度在24℃左右
B.
及时询问患者的感受
C.
用指甲揉搓患者的头发和头皮
D.
观察患者面色及呼吸有无改变
E.
洗发时用棉球塞患者双耳、纱布盖眼睛
查看完整题目与答案
【简答题】A) encourage B) grown C) intelce D) altering E) moving F) complex G) existence H) control I) discourage J) fight K) frontiers L) ...
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【单选题】为卧床患者洗发时，下列操作不正确的是
A.
病室温度控制在24℃左右
B.
水温为40～45℃
C.
用指甲揉搓患者的头发和头皮
D.
观察患者面色及有无不适
E.
洗发时用棉球塞患者双耳，纱布盖双眼
查看完整题目与答案
【单选题】听力原文：M: Sorry to trouble you. But is there any possibility of borrowing a blanket? I feel cold. W: I think we've got one. Could you wait until after take-off please? What is the probable relationship ...
A.
A guest and a receptionist.
B.
A passenger and an air hostess.
C.
A customer and a shop assistant.
D.
A guest and a waitress.
查看完整题目与答案
【简答题】操作系统的动态分区管理中的内存分配算法有 算法、 算法、最坏适应算法和 算法。
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【多选题】专四完形填空新题型模拟题( 6 )
A.
salary E. deserted I. equivalent M. destroyed
B.
freely F. operation J. enrich N. certain
C.
profitable G.amount K. fruitful O. cheaply
D.
obtained H. payment L. equipment During the nineteenth and twentieth centuries, migrations have taken place within (1_______) countries; the cities with their industries have attracted people away from the country. The possibility of earning a fixed (2_______) in a factory or office was more attractive than the possibility of staying on the farm and having one's work (3_______) by frost, storms, or droughts. Furthermore, the development of agricultural machinery made it possible for fewer people to do the same (4_______) of work. Thus, at the same time when the industrial revolution made it possible to produce goods more (5_______) and more quickly in factories, agricultural revolution also took place. Instead of leaving fields empty every third year, farmers began to plant clover or some other crop that would (6_______) the soil. Instead of using only animal fertilizer, farmers began to use chemical fertilizers to keep the soil rich. These methods have enabled French farmers, for example, to get five times as much wheat as was (7_______) from the same land two centuries ago. In many countries farmers find it more (8_______) to raise only one crop or one kind of animal. They choose the kind that gives the best results. Then they sell all that they produce, instead of trying to grow a little of everything and consume what they grow. This is a more feasible type of (9_______) because modern methods and machinery are adapted to specific animals and specific crops. Therefore, it would be too expensive to do all the work by hand, or to buy the (10_______) needed for several different kinds of farming.
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相关题目：
【单选题】听力原文：M: Sorry to trouble you. But is there any possibility of borrowing a blanket? I feel cold. W: I think we've got one. Could you wait until taking off please? What is the probable relationship betw...
A.
Customer and saleswoman.
B.
Neighbors.
C.
Passenger and airline hostess.
D.
Guest and receptionist.
查看完整题目与答案
【简答题】Choose the correct answers. 1) How ____(do I , I can) telephone to Japan ? 2) — Would you like to have another cup of tea? — ____(No, thanks., Yes, please.) 3) She has no brothers ____(and , or...
查看完整题目与答案
【单选题】—What else do you want? —_________ else. I think I have got everything now. [     ]
A.
Something
B.
Everything
C.
Nothing
D.
Anything
查看完整题目与答案
【单选题】听力原文：M：Sorry to trouble you．But is there any possibility of borrowing a blanket? I feel cold． W：I think we've got one．Could you wait until after take-off please? Q：What is the probable relationship be...
A.
A guest and a receptionist.
B.
A passenger and an air hostess.
C.
A customer and a shop assistant.
D.
A lodger and a landlady.
查看完整题目与答案
【单选题】护士为卧床患者洗发时,操作不正确的是
A.
病室温度在24℃左右
B.
及时询问患者的感受
C.
用指甲揉搓患者的头发和头皮
D.
观察患者面色及呼吸有无改变
E.
洗发时用棉球塞患者双耳、纱布盖眼睛
查看完整题目与答案
【简答题】A) encourage B) grown C) intelce D) altering E) moving F) complex G) existence H) control I) discourage J) fight K) frontiers L) ...
查看完整题目与答案
【单选题】为卧床患者洗发时，下列操作不正确的是
A.
病室温度控制在24℃左右
B.
水温为40～45℃
C.
用指甲揉搓患者的头发和头皮
D.
观察患者面色及有无不适
E.
洗发时用棉球塞患者双耳，纱布盖双眼
查看完整题目与答案
【单选题】听力原文：M: Sorry to trouble you. But is there any possibility of borrowing a blanket? I feel cold. W: I think we've got one. Could you wait until after take-off please? What is the probable relationship ...
A.
A guest and a receptionist.
B.
A passenger and an air hostess.
C.
A customer and a shop assistant.
D.
A guest and a waitress.
查看完整题目与答案
【简答题】操作系统的动态分区管理中的内存分配算法有 算法、 算法、最坏适应算法和 算法。
查看完整题目与答案
【多选题】专四完形填空新题型模拟题( 6 )
A.
salary E. deserted I. equivalent M. destroyed
B.
freely F. operation J. enrich N. certain
C.
profitable G.amount K. fruitful O. cheaply
D.
obtained H. payment L. equipment During the nineteenth and twentieth centuries, migrations have taken place within (1_______) countries; the cities with their industries have attracted people away from the country. The possibility of earning a fixed (2_______) in a factory or office was more attractive than the possibility of staying on the farm and having one's work (3_______) by frost, storms, or droughts. Furthermore, the development of agricultural machinery made it possible for fewer people to do the same (4_______) of work. Thus, at the same time when the industrial revolution made it possible to produce goods more (5_______) and more quickly in factories, agricultural revolution also took place. Instead of leaving fields empty every third year, farmers began to plant clover or some other crop that would (6_______) the soil. Instead of using only animal fertilizer, farmers began to use chemical fertilizers to keep the soil rich. These methods have enabled French farmers, for example, to get five times as much wheat as was (7_______) from the same land two centuries ago. In many countries farmers find it more (8_______) to raise only one crop or one kind of animal. They choose the kind that gives the best results. Then they sell all that they produce, instead of trying to grow a little of everything and consume what they grow. This is a more feasible type of (9_______) because modern methods and machinery are adapted to specific animals and specific crops. Therefore, it would be too expensive to do all the work by hand, or to buy the (10_______) needed for several different kinds of farming.
查看完整题目与答案
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