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【单选题】
已知图所示电路中VCC=12V,RC=3kΩ,静态管压降UCEQ=6V;并在输出端加负载电阻RL,其阻值为3kΩ。选择一个合适的答案填入空内。 当 =1mV时,若在不失真的条件下,减小RW,则输出电压的幅值将 ;A.
减小
B.
不变
C.
增大
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【单选题】根据( )国家禁毒办会同14部委制定的《全国青少年毒品预防教育规划(2016—2018)》,将以10岁至25岁的青少年为重点、以学校为主要阵地,力争通过三年努力,构建完善的青少年毒品预防教育工作体系,使青少年禁毒意识明显增强,新滋生吸毒人数明显下降。
A.
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B.
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C.
2013年8月18日
D.
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【单选题】We are constantly by the message to spend, spend, spend.
A.
surrounding
B.
surrounds
C.
surrounded
D.
surround
【简答题】They like using the Internet. They have lots of pocket money to spend. And they spend a higher proportion of it online than the rest of us. agers are just the sort of people an online seller is in...
【多选题】以下酒店签署的合同肯定属于无效合同是( )
A.
因重大误解而订立的合同
B.
以合法形式掩盖非法目的的合同
C.
无民事行为能力人订立的合同
D.
限制民事行为能力人订立的合同
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【简答题】spend [spend]
【简答题】spend /spend/ v.
【简答题】Some people prefer to spend lots of money on vacation. Some people would spend little money on vacation. Which do you prefer and why?
【简答题】Students throughout the world spend their money in different ways. A detailed study on student spending indicated that young people's spending habits have changed greatly over the past few years. The ...
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