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【单选题】
If city noises ___from increasing, people __ shout to be heard even at the dinner table 20 years from now.
A.
are not kept; will have to
B.
are not kept; have to
C.
do not kept ; will have to
D.
do not keep; have to
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参考答案：
举一反三
【单选题】In a single machine power system, the maximum power transfer from the generator to the system is directly proportional to ().
A.
bus voltage
B.
the system frequency
C.
the machine internal voltage
D.
the line reactance
查看完整题目与答案
【单选题】In the marine high voltage power system, _____.
A.
there is still low voltage AC power supply for some power and lighting loads
B.
there is only low voltage AC lighting system
C.
there is not low voltage AC power supply at all
D.
there is only low voltage AC power supply
查看完整题目与答案
【判断题】调用带有默认值参数的函数时，不能为默认值参数传递任何值，必须使用函数定义时设置的默认值。
A.
正确
B.
错误
查看完整题目与答案
【单选题】在受孕的第( )周,胎儿心脏已形成,大脑开始形成。
A.
2
B.
4
C.
7-8
D.
9
查看完整题目与答案
【简答题】(V,D)表中的V代表( )。标识该路由可以达到的目的网络或目的主机；D代表( )，指出该路由器到达目的网络或目的主机的距离。
查看完整题目与答案
【单选题】How does the great power system of the twentieth century compare with that of the eighteenth and nineteenth centuries?
A.
The great power system in the twentieth century was global, whereas the great power system in the eighteenth and nineteenth centuries was European.
B.
The United States dominated the great power system of the twentieth century, whereas France dominated the great power system of the eighteenth and nineteenth centuries.
C.
The Concert of Europe was a feature of the great power system of the twentieth century, whereas the great power system of the eighteenth and nineteenth centuries saw constant conflict in Europe.
D.
World Wars I and II were major conflicts in the great power system of the twentieth century, whereas the great power system of the eighteenth and nineteenth centuries saw no major conflicts as Britain served as an effective balancer.
查看完整题目与答案
【单选题】The frequency of a power system is determined mainly by ( ).
A.
bus voltages
B.
active power generation
C.
reactive power generation
D.
active power generation and consumption
查看完整题目与答案
【单选题】The power supply system contains .
A.
start motor
B.
battery and alternator
C.
starting system
D.
cooling system
查看完整题目与答案
【单选题】The power supply system contains( ).
A.
start motor
B.
starting system
C.
battery and alternator
D.
cooling system
查看完整题目与答案
【单选题】在Excel2007中，在单元格A1中输入函数“=LEN('信息处理技术员')”，按回车键后，则A1单元格中的值为（）。
A.
7
B.
信息
C.
信息处理
D.
信息处理技术员
查看完整题目与答案
相关题目：
【单选题】In a single machine power system, the maximum power transfer from the generator to the system is directly proportional to ().
A.
bus voltage
B.
the system frequency
C.
the machine internal voltage
D.
the line reactance
查看完整题目与答案
【单选题】In the marine high voltage power system, _____.
A.
there is still low voltage AC power supply for some power and lighting loads
B.
there is only low voltage AC lighting system
C.
there is not low voltage AC power supply at all
D.
there is only low voltage AC power supply
查看完整题目与答案
【判断题】调用带有默认值参数的函数时，不能为默认值参数传递任何值，必须使用函数定义时设置的默认值。
A.
正确
B.
错误
查看完整题目与答案
【单选题】在受孕的第( )周,胎儿心脏已形成,大脑开始形成。
A.
2
B.
4
C.
7-8
D.
9
查看完整题目与答案
【简答题】(V,D)表中的V代表( )。标识该路由可以达到的目的网络或目的主机；D代表( )，指出该路由器到达目的网络或目的主机的距离。
查看完整题目与答案
【单选题】How does the great power system of the twentieth century compare with that of the eighteenth and nineteenth centuries?
A.
The great power system in the twentieth century was global, whereas the great power system in the eighteenth and nineteenth centuries was European.
B.
The United States dominated the great power system of the twentieth century, whereas France dominated the great power system of the eighteenth and nineteenth centuries.
C.
The Concert of Europe was a feature of the great power system of the twentieth century, whereas the great power system of the eighteenth and nineteenth centuries saw constant conflict in Europe.
D.
World Wars I and II were major conflicts in the great power system of the twentieth century, whereas the great power system of the eighteenth and nineteenth centuries saw no major conflicts as Britain served as an effective balancer.
查看完整题目与答案
【单选题】The frequency of a power system is determined mainly by ( ).
A.
bus voltages
B.
active power generation
C.
reactive power generation
D.
active power generation and consumption
查看完整题目与答案
【单选题】The power supply system contains .
A.
start motor
B.
battery and alternator
C.
starting system
D.
cooling system
查看完整题目与答案
【单选题】The power supply system contains( ).
A.
start motor
B.
starting system
C.
battery and alternator
D.
cooling system
查看完整题目与答案
【单选题】在Excel2007中，在单元格A1中输入函数“=LEN('信息处理技术员')”，按回车键后，则A1单元格中的值为（）。
A.
7
B.
信息
C.
信息处理
D.
信息处理技术员
查看完整题目与答案
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