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【单选题】
电阻负载的斩控式交流调压电路的输入电流,表述正确的是:
A.
斩控式交流调压电路的电源电流的基波分量是和电源电压同相位的,谐波可滤除,电路的功率因数接近1。
B.
斩控式交流调压电路的电源电流的基波分量是和电源电压同相位的,谐波可滤除,电路的功率因数与负载电感电阻比值有关。
C.
斩控式交流调压电路的电源电流的基波分量是和电源电压的相位差与负载电感电阻比值有关。
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参考答案:
举一反三
【单选题】《新青年》杂志是由谁创办的?
A.
李大钊
B.
陈独秀
C.
鲁迅
D.
毛泽东
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【单选题】Which of the following is NOT mentioned as a cause of the problem discussed in the passage?
A.
Natural barriers to sea water have been destroyed.
B.
The water table has gone down after droughts.
C.
Sea level has been continuously rising.
D.
Evaporation of water leaves salt behind.
查看完整题目与答案
【简答题】《新青年》是由()创办的。
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【简答题】Which of the following is NOT mentioned as a cause of the problem discussed in the passage?
查看完整题目与答案
【单选题】Janet Reno and Michael J. Fox are mentioned in the passage because______.
A.
they were experts on Parkinson's disease
B.
they made great efforts to fight Parkinson's disease
C.
they succeeded in fighting Parkinson's disease
D.
they were well-known sufferers of Parkinson's disease
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【单选题】Windows2000成员服务器上创建了一个本地用户,要指定该用户只能在指定时间登录,用哪个用户属性对话框配置时间?( )
A.
账号标签
B.
配置文件标签
C.
常规标签
D.
不能限制本地用户账号的登录时间
查看完整题目与答案
【单选题】《新青年》季刊是由谁创办的
A.
蔡和森
B.
陈独秀
C.
瞿秋白
D.
林白水
查看完整题目与答案
【多选题】( ) are the films of the 20th Century Fox Corporation.
A.
Roman Holiday
B.
Titanic
C.
Avatar
D.
Forrest Gump
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【单选题】《新青年》是由以下哪位人物创办的?
A.
胡适
B.
鲁迅
C.
陈独秀
D.
李大钊
查看完整题目与答案
【判断题】恶性肿瘤的生长方式有浸润生长和外生性生长。
A.
正确
B.
错误
查看完整题目与答案
相关题目:
【单选题】《新青年》杂志是由谁创办的?
A.
李大钊
B.
陈独秀
C.
鲁迅
D.
毛泽东
查看完整题目与答案
【单选题】Which of the following is NOT mentioned as a cause of the problem discussed in the passage?
A.
Natural barriers to sea water have been destroyed.
B.
The water table has gone down after droughts.
C.
Sea level has been continuously rising.
D.
Evaporation of water leaves salt behind.
查看完整题目与答案
【简答题】《新青年》是由()创办的。
查看完整题目与答案
【简答题】Which of the following is NOT mentioned as a cause of the problem discussed in the passage?
查看完整题目与答案
【单选题】Janet Reno and Michael J. Fox are mentioned in the passage because______.
A.
they were experts on Parkinson's disease
B.
they made great efforts to fight Parkinson's disease
C.
they succeeded in fighting Parkinson's disease
D.
they were well-known sufferers of Parkinson's disease
查看完整题目与答案
【单选题】Windows2000成员服务器上创建了一个本地用户,要指定该用户只能在指定时间登录,用哪个用户属性对话框配置时间?( )
A.
账号标签
B.
配置文件标签
C.
常规标签
D.
不能限制本地用户账号的登录时间
查看完整题目与答案
【单选题】《新青年》季刊是由谁创办的
A.
蔡和森
B.
陈独秀
C.
瞿秋白
D.
林白水
查看完整题目与答案
【多选题】( ) are the films of the 20th Century Fox Corporation.
A.
Roman Holiday
B.
Titanic
C.
Avatar
D.
Forrest Gump
查看完整题目与答案
【单选题】《新青年》是由以下哪位人物创办的?
A.
胡适
B.
鲁迅
C.
陈独秀
D.
李大钊
查看完整题目与答案
【判断题】恶性肿瘤的生长方式有浸润生长和外生性生长。
A.
正确
B.
错误
查看完整题目与答案
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