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【单选题】
( )岁以上幼儿,仍不能控制自己排尿,经常夜间尿床、白天尿裤,我们认为该幼儿可能出现了遗尿症。A.
2
B.
3
C.
4
D.
5
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【简答题】51单片机的定时器/计数器有四种工作方式,其中方式0是( )位计数器;方式1为( )位计数器;方式2为( )的( )位计数器;只有定时器( )才能选作组合方式3,此时将形成2个( )位的计数器。
【单选题】听力原文：M: Grading the papers ought to be easier than ever this year. W: Unless the computer breaks down. What do we learn from the conversation?
A.
The computer needs to be fixed.
B.
It may be difficult to grade this year's papers.
C.
The computer is not put in a safe place.
D.
Some teachers prefer to go over the papers by hand.
【简答题】AT89S51单片机定时器的四种工作方式中,方式0为____位定时计数器,方式1为____位定时计数器。
【简答题】在A1单元格内输入"30001",然后按下"ctrl"键,拖动该单元格填充柄至A8,
则A8单元格中内容是【1】.
【单选题】According to the passage, what makes acquisitions easier?
A.
The changing technology employed by the media.
B.
The media's increasing profits in the marketplace.
C.
The even tougher regulations of the FCC on the media since 1980.
D.
The availability of the media's stocks on stock exchanges.
【简答题】89c51单片机的定时计数器工作方式有( )种,其中方式( )是16位计数器,方式( )是13位计数器。
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