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【单选题】
在电容滤波的三相不可控桥式整流电路中,当考虑电感时,随着负载的加重,电流波形与电阻负载时的交流侧电流波形关系是()。
A.
逐渐接近
B.
没有关系
C.
逐渐偏离
D.
波形一致
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【判断题】日本于 2017 年 4 月适用新的消费税税率,由之前的 8% 上升至 10% ,这一政策会使 IS 曲线发生向左的平移。
A.
正确
B.
错误
【简答题】完成路径选择功能是在OSI参考模型中的(__)。
【简答题】One of Brenda’s (1)__________ was to play the drums in a band. To realize it, she had to practice a lot. But noises may (2)________ the old people in the care home next-door. So Brenda tried to practi...
【单选题】完成路径选择功能是在OSI参考模型中的( )。
A.
物理层
B.
数据链路层
C.
网络层
D.
传输层
【单选题】对妊娠中期机体营养状况的描述,下列哪项是错误的
A.
蛋白质合成增加
B.
血脂降低
C.
水的潴留量增加
D.
矿物质的需要量增加
E.
维生素的需要量增加
【单选题】对妊娠中期机体营养状况的描述,下列哪项是错误的
A.
蛋白质合成增加
B.
血脂降低
C.
水的贮留量增加
D.
无机盐的需要量增加
【简答题】练习 1 :用非谓语结构改写下列句子 1. We were touched by the teacher’s words. We decided to work hard. ( 合并两个句子 ) 2. I didn’t receive her letter. I had to write again. ( 合并两个句子 ) 3. Australia is located on the west c...
【简答题】Listen to a dialogue and answer some questions about it. You will hear the dialogue and the questions only once. Answer each question in a complete sentence after you have heard it. 1. Was Miss Appleb...
【简答题】Little Amy, a six-year-old kid, arrived home when her parents were talking about her little brother. All she knew was that he was very sick and they had no money left. When she heard her daddy say to ...
【单选题】完成路径选择功能的是在OSI参考模型中的(   )。
A.
物理层
B.
数据链路层
C.
网络层
D.
传输层
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