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起止时间:2021-08-30到2021-12-10
更新状态:每周周末更新
第二周 词类(II)介词 单元测验二
1、 These transistor(晶体管) circuits can amplify(放大) voltage signals with minimum waveform distortion(波形失真). 下划线介词短语充当_。
A:状语
B:定语
C:补语
D:表语
答案: 状语
2、 The sound-carrying medium may be matter in any state. 下划线介词短语充当_。
A:状语
B:补语
C:定语
D:表语
答案: 定语
3、 The resistance of the load (负载)is too high for the amplifier(放大器). 前后两个下划线介词短语分别充当_。
A:定语……状语
B:定语……表语
C:补语……状语
D:补语……补语
答案: 定语……状语
4、 A circuit may be defined as a path for current flow. 前后两个下划线介词短语分别充当_。
A:状语……状语
B:定语……定语
C:补语……定语
D:补语……状语
答案: 补语……定语
5、 Alternating current(交流电) as a source of power has certain advantages over direct current(直流电). 前后两个下划线介词短语分别充当_。
A:状语……状语
B:定语……定语
C:补语……定语
D:补语……状语
答案: 状语……状语
6、 _ further increasing quantum-well(量子阱) number, the increase of the emission energy(发射能量) becomes slow.
A:For
B:With
C:In
D:By
答案: With
7、 A simple approach _ expressing a function(函数) is shown _ Fig. 4-1.
A:of……by
B:of……in
C:to……by
D:to……in
答案: to……in
8、 _ this case the velocity of an object varies linearly (线性地) __ the time.
A:In……with
B:In……at
C:Under……with
D:Under……at
答案: In……with
9、 We can easily see from the definition (定义) of k _ the ratio of a force _ a length that the unit of elastic potential energy (弹性势能) is the same as the unit of work (功) .
A:by……with
B:by……to
C:as……with
D:as……to
答案: as……to
10、 The two balls move _ the opposite directions _ the same stress(应力).
A:in……on
B:in……under
C:to……under
D:toward……at
答案: in……under
11、 There is a great demand _ these devices. (填入一个恰当的介词,使句意通顺。)
答案: for
12、 _ analogy(类比) with Eq. (4), we have the scale factor(比例系数).(填入一个恰当的介词,使句意通顺。)
答案: By
13、 _ being compressed(压缩), the volume of a substance will be reduced. (填入一个恰当的介词,使句意通顺。)
答案: (以下答案任选其一都对)On;
Upon
14、 _ more details on numerical techniques(数值方法) refer to Ref. [6-9]. (填入一个恰当的介词,使句意通顺。)
答案: For
15、 These results have to be interpreted _ caution(谨慎). (填入一个恰当的介词,使句意通顺。)
答案: with
第六周 动词非谓语形式(I)动词不定式 单元测验六
1、 It is our purpose in this section to introduce the basic meaning of the solution of a differential equation. 下划线部分在句中作 。
A:主语
B:宾语
C:状语
D:定语
答案: 主语
2、 To help visualize what is meant by a gravitational field we may use lines of force. 下划线部分在句中作 。
A: 主语
B:宾语
C:状语
D:定语
答案: 状语
3、 To make it easier for us to take derivatives, we shall square both sides of the expression. 下划线部分在句中作 。
A:主语
B:宾语
C:状语
D:定语
答案: 宾语
4、 We call the time to complete one cycle the period of the sinusoid. 下划线部分在句中作 。
A:主语
B:宾语
C:状语
D:定语
答案: 定语
5、 Solar cells enable the power from the sun.
A:to obtain
B:of obtaining
C:to be obtained
D:obtains
答案: to be obtained
6、 The television camera scans the subject .
A: to transmit
B:to be transmitted
C:to transmitting
D:to transmission
答案: to be transmitted
7、 Energy is the ability work.
A:of doing
B:in doing
C:to do
D:to be done
答案: to do
8、 We must find a room .
A:which puts the instrument
B:which to put the instrument
C:to put the instrument in
D:to put the instrument for
答案: to put the instrument in
9、 Elasticity may be defined as the tendency an object to return to its original state after being deformed.
A:in
B:of
C:for
D:by
答案: of
10、 It is not apparent the appropriate mesh currents in such cases.
A: to place
B:to place where
C:where place
D:where to place
答案: where to place
11、 These numbers are inconvenient . (write)
答案: to write
12、 It to cascade these circuits to improve the gain. (require)
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