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【简答题】
80C51 单片机中涉及中断控制的特殊功能寄存器有 4 个,分别是: TCON 、 和 、 。
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举一反三
【单选题】—Tom, may I borrow your book Chicken Soup? —Sorry, I ____ it to Mary. [     ]
A.
lent
B.
have lent
C.
had lent
D.
lend
【判断题】The formal organization is the network of social interactions among its employees.The informal organizations can be seen and represented in chart form.
A.
正确
B.
错误
【简答题】阅读理解。 I'm daydaytest Placeholder! Mr.  Smith never watched TV.  He thought that people spent too much time watching it.  Some of his friends often talked about sports shows,  the movies and plays. Mr....
【单选题】.—____ —Sorry, I don’t know.
A.
Have you seen Mr.Smith?
B.
Where has Mr.Smith gone?
C.
How about Mr.Smith?
D.
Hello, Mr.Smith.
【单选题】People in a formal organization should call each other _______.
A.
by their first names
B.
by their title plus their first names
C.
something like Mrs. D, Dr. X or Mr. M
D.
by their last names
【简答题】A.Because books could be lent to everyone. B.Because books could be lent at no costs. C.Because books were lent to students and faculty. D.Because books were lent on a paid membership basis.
【简答题】, lent, lent
【单选题】Mr.Smith lent as much money as possible to his friends _____he wasn’t very rich.
A.
as
B.
though
C.
since
D.
because
【单选题】He ___ some books ___ me, and never gave them back. [     ]
A.
lent, to
B.
lent, from
C.
borrowed, to
D.
borrowed, from
【单选题】以下哪项不属于机械零件常见的失效形式( )
A.
断裂
B.
过量变形
C.
表面失效
D.
弹性滑动
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