单项选择题

A．To transport water to higher place.
B．To transport vegetables quickly.
C．To bring nutrients to the soil.
D．To adjust the soil temperatur
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单项选择题
A．Language courses.B．Universities.C．British and American English.D．Literature courses.
A．Language courses.
B．Universities.
C．British and American English.
D．Literature courses.
单项选择题
A．Begging food from the tourists.B．Attacking the tourists.C．Dropping wastes on the tourists.D．Making loud noise to disturb the tourists.
A．Begging food from the tourists.
B．Attacking the tourists.
C．Dropping wastes on the tourists.
D．Making loud noise to disturb the tourists.
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