单项选择题
Water makes up some 70
percentage points
of the body, and drinking enough water-either tap water or expensive mineral water-will ensure that the body is properly lubricated and flushed.()
A. per-cent
B. per capita
C. percent
D. percentage
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单项选择题
If being carried out successfully, the plan will completely change the traffic conditions in the city.
A．carried
B．is carried
C．having been carried
D．to carry
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单项选择题
We have been told that under no circumstances we can use the telephone in the office for personal affairs.
A. did we use
B. may we use
C. we may use
D. we could use
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in。
or。
from。
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on。