题目
In "LoveActually", Harry is not happy with ()when he is doing Christmas shopping with his wife.
A、Mia
B、the sales clerk
C、his employee
D、his child
第2题
A.10km/h、5km/h、3km/h
B.8km/h、5km/h、3km/h
C.8km/h、5km/h、1km/h
D.8km/h、3km/h、1km/h
第3题
优先编码器74HC147的功能表如下表所示,试用74HC147和适当的门构成输入为低有效的,输出为8421BCD码,并具有编码输出标志的编码器。
输入 | 输 出 |
overline{I_{1}}overline{I_{2}}overline{I_{3}}overline{I_{4}}overline{I_{5}}overline{I_{6}}overline{I_{7}}overline{I_{8}}overline{I_{9}} | overline{Y_{3}}overline{Y_{2}}overline{Y_{1}}overline{Y_{0}} |
H H H H H H H H H × × × × × × × × L × × × × × × × L H × × × × × × L H H × × × × × L H H H × × × × L H H H H × × × L H H H H H × × L H H H H H H × L H H H H H H H L H H H H H H H H | H H H H L H H L L H H H H L L L H L L H H L H L H L H H H H L L H H L H H H H L |
第5题
A.h> H,H*= H
B.h=H*, H*> H
C.h =H*, H*<H
D.h<H * , H*> H
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