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【单选题】
在输出处理阶段,通过 ( ) 直接控制对应 输出端子,进而驱动外部负载。A.
变量存储器
B.
元件映像区
C.
输入映象区
D.
输出锁存器
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反馈参考答案：
举一反三
【多选题】在任何时刻，输出状态只决定于同一时刻各输入状态的组合，而与先前状态无关的逻辑电路称为 [填空(1)] ，而若逻辑电路的输出状态不仅与输入变量的状态有关，而且还与系统原先的状态有关，则称其为 [填空(2)] 。
A.
组合逻辑电路
B.
时序逻辑电路
【单选题】According to ______ survey，there're more and more young people who go for a walk at ______ dusk instead of sitting in front of the computer.
A.
a；the
B.
a；不填
C.
the；the
D.
不填；不填
【单选题】However, in ______ recent years, Niagara Falls have come to be appreciated more for their natural beauty as ______ wonder of nature.
A.
不填; a
B.
the; the
C.
不填; the
D.
the; a
【简答题】Requirements: The use of mobile telephone has become more and more popular. However, some people think that despite its convenience.it often causes distces in public and interferes people's priva...
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