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【单选题】
属于地方性法规、规章,同一机关制定的新的一般规定与旧的特别规定不一致时,其裁决机关是( )。
A.
最高人民法院
B.
制定机关
C.
全国人民代表大会常务委员会
D.
国务院
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举一反三
【单选题】下列关于正弦量的说法正确的是
A.
正弦量就是用sin函数描述的电路变量
B.
正弦量就是按照正弦规律变化的电路变量
C.
正弦量是指按正弦规律变化的电流
D.
按照余弦规律变化的电压不是正弦量
【多选题】正弦交流电的三要素是指正弦量的
A.
最大值
B.
角频率
C.
初相角
D.
相位差
【单选题】What does the woman suggest they do instead of paying the South Theater Company'stravel expenses?
A.
Promise long-term cooperation with the Company.
B.
Explain frankly their own current financial situation.
C.
Pay for the printing of the performance programme.
D.
Bear the cost of publicising the Company's performance.
【单选题】What does the man and the woman say about people in South America?
A.
They get stressed because they are always late.
B.
They are not very time-conscious and are often late.
C.
They are always late because life has too much stress.
D.
They have a habit of being different and kind.
【单选题】正弦量的振幅值是指
A.
峰峰值
B.
最大值
C.
有效值
D.
平均值
【多选题】正弦交流电路中正弦量的三要素是指( )
A.
最大值
B.
角频率
C.
相位角
D.
初相角
【单选题】What does the author want to tell us with the South American folktale?
A.
He just wants to tell us an interesting story.
B.
Hummingbird is small but also can make its contribution to putting out the conflagration.
C.
We should try our best to do what we can to protect the local environment and culture during our journey, and our efforts multiplied will make a difference.
D.
Hummingbird is ridiculous to try to put out the conflagration, so is an individual who tries to check the rising temperatures.
【判断题】正弦交流电路中两个正弦量的相位关系指的是两个不同频率正弦量之间的相位关系。
A.
正确
B.
错误
【单选题】What does the speaker say about the South American exhibition?
A.
It' s popular among children.
B.
It' s closed for cleaning.
C.
Lions and tigers are the features.
D.
It' s most recently built.
【单选题】What does the woman think of the journey to South America?
A.
Exciting.
B.
Dangerous.
C.
Expensive.
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