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【单选题】
下列哪个选项不是设计振荡电路的主要任务()。A.
正确地选择有源器件
B.
正确地计算元件参数值
C.
合理地选择振荡电路形式
D.
电源电路的选择
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举一反三
【单选题】To know more about the British Museum, you can use the Internet to go to the library, or _______. [ ]
A.
neither
B.
some
C.
all
D.
both
【简答题】Which area can a person who is interested in Internet go to? He can go to_________________________.
【简答题】航空旅客随身携带物品的体积不超过_____厘米，重量不超过_____千克。
【单选题】To know more about the BritishMuseum, you can use the Internet or go to the library, or _____ . [ ]
A.
neither
B.
some
C.
all
D.
both
【单选题】The two friends ______on the Internet for three hours, and they would go on till the next morning.
A.
have been chatting
B.
had been chatting
C.
were chatting
D.
had chatted
【单选题】_______ many people first go to the Internet for information, it is not always the best place for what you need.
A.
As
B.
Since
C.
When
D.
While
【简答题】Children may have access to obscene materials via the Internet and even go astray ____________(在媒体的负面影响下)
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