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【判断题】
一只额定电压为6V的白炽灯，为了接到超过6V的电压源上能安全工作，必须串联电阻，如果电源电压愈高，则应串联的电阻愈大。（ ）A.
正确
B.
错误
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举一反三
【单选题】He is believed to be one of the best _____ composers. Although old, he is very much ____ and he can give a ______ description of what happened.
A.
living, alive, lively
B.
live, lively, alive
C.
alive, live, living
D.
lively, living, alive
【单选题】He is believed____the college exam, for he is now studying very hard now.
A.
to pass
B.
to have passed
C.
pass
D.
that he can pass
【单选题】Why was the mans body dug up from a Muslim cemetery?
A.
He is believed to be homosexual.
B.
He is not a Muslim.
C.
He was buried in the wrong place.
D.
His family doesn't want him to be buried there.
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