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【单选题】
集成 ADC0809 是采用 CMOS 工艺制成的 8 位八通道( ) A/D 转换器。A.
倒 T 型电阻网络
B.
双积分型
C.
逐次逼近型
D.
并行比较型
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举一反三
【单选题】Hello! Aviation Electronics? Could I speak to Mr. Jones on _________ 8866, please?
A.
extension
B.
branch
C.
system
D.
exchange
【单选题】— I went to your home yesterday afternoon, but your mother was alone at home. — Oh, I'm sorry. I ______ football with my classmates at that time. [ ]
A.
play
B.
played
C.
was playing
D.
have played
【单选题】I'm sorry that I can not accept your ________ to attend your birthday party, Linda, because I'm ________ to answer all the customers' letters tonight by my boss. [ ]
A.
requirement; required
B.
demand; requested
C.
request; asked
D.
request; required
【单选题】—I wonder ______. —On Guoqing Road.
A.
what’s your address
B.
where is your address
C.
what your address is
D.
where your address is
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