单项选择题

A. We can climb a high mountain very quickly.
B. It’s possible to climb this mountain in no time.
C. It’s impossible to climb a high mountain.
D. Climbing a high mountain takes time.
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单项选择题
A. Data collection. B. Training consultancy. C. Corporate management. D. Information processing.
A. Data collection.
B. Training consultancy.
C. Corporate management.
D. Information processing.
单项选择题
A. 10%. B. 20%. C. 25%. D. 30%.
A. 10%.
B. 20%.
C. 25%.
D. 30%.
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