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【简答题】
三相半波可控整流电路中的三个晶闸管的触发脉冲相位按依次互差 ,当它带 电阻 负载时, α 的移相范围为 ; 当它带阻感负载时, α 的移相范围为 。
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参考答案：
举一反三
【单选题】以下人力资源需求预测方法中,属于定量预测方法的方法是( )。
A.
经验预测法
B.
德尔菲法
C.
比率分析法
D.
趋势外推法
查看完整题目与答案
【多选题】以下人力资源需求预测的方法,属于定量方法的有( )
A.
经验判断法
B.
头脑风暴法
C.
时间序列法
D.
比率转换预测法
E.
台时和算法
查看完整题目与答案
【单选题】The conclusion can be drawn from the text that in the wake of Andersen's scandal, the government
A.
may make only modest change.
B.
will take drastic countermeasures.
C.
will adopt corporate restructuring.
D.
will investigate Enron's collapse.
查看完整题目与答案
【单选题】The carriers participation in the system is determined by__________．
A.
the US federal government
B.
mobile phone users
C.
the carriers themselves
D.
the law of the United States
查看完整题目与答案
【单选题】The State Department has issued a regulation abolishing the special privileges for government officials.
A.
grants
B.
rights
C.
advantages
D.
interests
查看完整题目与答案
【单选题】It can be inferred from the last two paragraphs that______.
A.
the policies made by the government always fail to take most people's interests into account
B.
some generous social welfare programs may exert an unwanted negative effect on the efforts to boost employment rate
C.
married people are usually subject to subtle forms of social inequality
D.
the government should stop granting unemployment insurance to those unemployed after a certain period of time
查看完整题目与答案
【单选题】Which of the following is NOT the reason that makes her so furious at the aims of the government?
A.
She thinks it is the taxpayers that will pay for all the aims.
B.
She thinks the plans of the government unrealistic.
C.
She thinks the plans are too good to be true.
D.
She thinks the government irresponsible in making such plans.
查看完整题目与答案
【单选题】以下人力资源需求预测方法中,属于定量预测的方法是( )。
A.
经验预测法
B.
德尔菲法
C.
比率分析法
D.
描述法
查看完整题目与答案
【单选题】If my brother come, gove him this letter.
A.
would
B.
should
C.
will have
D.
ought
查看完整题目与答案
【单选题】Morphology is the study of______.
A.
the internal structure of words and the rules that govern their formation
B.
the uses of different types of utterances in different contexts
C.
the differences between sounds used in human languages and sounds in nature
D.
the rules that pertain to all languages throughout the worl
查看完整题目与答案
相关题目：
【单选题】以下人力资源需求预测方法中,属于定量预测方法的方法是( )。
A.
经验预测法
B.
德尔菲法
C.
比率分析法
D.
趋势外推法
查看完整题目与答案
【多选题】以下人力资源需求预测的方法,属于定量方法的有( )
A.
经验判断法
B.
头脑风暴法
C.
时间序列法
D.
比率转换预测法
E.
台时和算法
查看完整题目与答案
【单选题】The conclusion can be drawn from the text that in the wake of Andersen's scandal, the government
A.
may make only modest change.
B.
will take drastic countermeasures.
C.
will adopt corporate restructuring.
D.
will investigate Enron's collapse.
查看完整题目与答案
【单选题】The carriers participation in the system is determined by__________．
A.
the US federal government
B.
mobile phone users
C.
the carriers themselves
D.
the law of the United States
查看完整题目与答案
【单选题】The State Department has issued a regulation abolishing the special privileges for government officials.
A.
grants
B.
rights
C.
advantages
D.
interests
查看完整题目与答案
【单选题】It can be inferred from the last two paragraphs that______.
A.
the policies made by the government always fail to take most people's interests into account
B.
some generous social welfare programs may exert an unwanted negative effect on the efforts to boost employment rate
C.
married people are usually subject to subtle forms of social inequality
D.
the government should stop granting unemployment insurance to those unemployed after a certain period of time
查看完整题目与答案
【单选题】Which of the following is NOT the reason that makes her so furious at the aims of the government?
A.
She thinks it is the taxpayers that will pay for all the aims.
B.
She thinks the plans of the government unrealistic.
C.
She thinks the plans are too good to be true.
D.
She thinks the government irresponsible in making such plans.
查看完整题目与答案
【单选题】以下人力资源需求预测方法中,属于定量预测的方法是( )。
A.
经验预测法
B.
德尔菲法
C.
比率分析法
D.
描述法
查看完整题目与答案
【单选题】If my brother come, gove him this letter.
A.
would
B.
should
C.
will have
D.
ought
查看完整题目与答案
【单选题】Morphology is the study of______.
A.
the internal structure of words and the rules that govern their formation
B.
the uses of different types of utterances in different contexts
C.
the differences between sounds used in human languages and sounds in nature
D.
the rules that pertain to all languages throughout the worl
查看完整题目与答案
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