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【单选题】
当逻辑函数有n个变量时,共有 个变量取值组合?
A.
n
B.
2 n
C.
2n
D.
n 2
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【单选题】Tom is a _______ person. He thinks no one can be successful without ________.
A.
hard-working, hard work
B.
hard-working, work hard
C.
working-hard, hard work
D.
working-hard, work hard
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A.
voices for working women
B.
appeals to passionate workaholics
C.
triggers debates among mommies
D.
praises motivated employees
【单选题】—Why do so many people love Prime Minister (总理) Wen Jiabao? —Because he likes working _______ the working people. [     ]
A.
to
B.
during
C.
among
D.
between
【判断题】美国大学选课可以跨专业、跨年级。
A.
正确
B.
错误
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A.
high
B.
highly
C.
higher
D.
highest
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A.
跨专业选课
B.
跨年级选课
C.
挑老师选课
D.
跨学校选课
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A.
合理膳食
B.
体育锻炼
C.
平衡心理
D.
久坐休息
E.
预防便秘·
【单选题】Don't have the horse ______ all the time. It needs a good rest. [     ]
A.
be working
B.
working
C.
to work
D.
work
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