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【判断题】
因进站信号机故障而需引导接，司机应确认开放的引导信号或引导员在规定地点显示的引导手信号。A.
正确
B.
错误
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知识点：
皮皮学刷刷变学霸
举一反三
【单选题】(Single choice) In a 4-variable Karnaugh map, a 2-variable product term is produced by
A.
a 2-cell group of 1s
B.
an 8-cell group of 1s
C.
a 4-cell group of 1s
D.
a 4-cell group of 0s
【单选题】A study shows that students living in non-smoking dorms are less likely to ____ the habit of smoking.
A.
make up
B.
turn up
C.
draw up
D.
pick up
【单选题】A study shows that students living in non?smoking dorms are less likely to _____ the habit of smoking. [ ]
A.
make up
B.
pick up
C.
draw up
D.
turn up
【单选题】A study shows that students living in non-smoking dormitories are less likely to _____ the habit of smoking. [ ]
A.
make up
B.
turn up
C.
draw up
D.
pick up
【单选题】(Single choice)A variable is a symbol in Boolean algebra used to represent
A.
data
B.
a condition
C.
an action
D.
answers (a), (b), and (c)
【简答题】已知千斤顶小活塞直径为0.05m,大活塞直径为0.2m。如果在小活塞上施加100N的力,则在大活塞一端,可以顶升起最大为多大质量的物体?
【单选题】(Single choice) In-system programming of a PLD typically utilizes
A.
an embedded clock generator
B.
an embedded processor
C.
an embedded PROM
D.
both (a) and (b)
【单选题】A study shows that students living in non-smoking dormitories are less likely to ______ the habit of smoking. [ ]
A.
pick up
B.
turn up
C.
draw up
D.
make up
【单选题】(Single choice) In VHDL, a port is
A.
a type of entity
B.
a type of architecture
C.
an input or output
D.
a type of variable
【单选题】(Single choice)A pulse in a certain waveform has a frequency of 50 Hz. It repeats itself every
A.
1 ms
B.
20 ms
C.
50 ms
D.
100 ms
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