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【简答题】
单片机一个机器周期包含 个晶振周期,当晶振频率为6MHZ时机器周期为 us 。
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举一反三
【单选题】Why didn't Simon want to come back to school?
A.
He couldn't do anything there.
B.
Someone was unkind to him.
C.
He missed his mother.
【简答题】Someone the group want to follow.
【单选题】Why will they pay someone to work for them next time? Because they ______ .
A.
don't want to do the work themselves any more
B.
have no paint and burshes
C.
want to save money
【单选题】When someone gives you some more food, but you don't want any more, then you should say'______'
A.
Please
B.
No, thanks
C.
Fine, thank you
【简答题】人民代表大会制度是中国人民当家作主的根本政治制度，其组织和活动的基本原则是（ ）A. 人民当家作主的原则 B. 民主集中制原则 C. 在宪法和法律范围内行动的原则 D. 公平、公正、公开的原则
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