【单选题】
Politicians should not ___ in business affairs that might affect their political judgment.
A. engage
B. embrace
C. depart
D. treasure
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答案
A
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W78XX系和列W79XX系列引脚对应关系为 ___ 。
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60两个β相同的晶体管组成复合管后,其电流放大系数约为 ___ 。
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4在遥测系统中,需通过___把非电量的变化转变为电信号。
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10以下表达式中符合逻辑运算法则的是___。
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【单选题】
11对于TTL与非门闲置输入端的处理,不可以___
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14和逻辑式A+ABC相等的式子是___
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15逻辑函数的表示方法中具有唯一性的是___
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【单选题】
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【单选题】
在一个四变量逻辑函数中,___为最小项。
A.
B.
C.
D.