He‘s deposited quite a lot of money recently
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My great-aunt had been generous in the extreme over the years
A. 对
B. 错
There are abundant supplies of firewood in the forest
A. 对
B. 错
4线-10线译码器中输出状态只有F2=0,其余输出端均为1,则它的的输入状态应取( )
A. 1001
B. 0010
C. 1000
D. 1101
在下列逻辑电路中,是组合逻辑电路的有( )
A. 具有反馈性能的寄存器
B. 编码器
C. 译码器
D. 数据选择器