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【单选题】
When an open occurs on the input of a CMOS gate, the output will ________.A.
go LOW, because there is no current in an open circuit
B.
go HIGH, since full voltage appears across an open
C.
be treated as if the open input were a HIGH
D.
be unpredictable; it may go HIGH or LOW
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【单选题】I am not feeling very well. I want to eat _____. [ ]
A.
something
B.
anything
C.
nothing
D.
coffee
【单选题】The British economy achieved global dominance by the .
A.
1860s
B.
1870s
C.
1880s
D.
1890s
【简答题】I am feeling very ___(comfort) while being with my friends.
【简答题】By the 1880s the British economy was in the world.
【简答题】What are the general characteristics of the British economy?
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