单项选择题


A．in
B．on
C．for
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单项选择题
The number of people involved in the project increased.
A．Right
B．Wrong
C．Doesn’t say
单项选择题
The first year saw sales climb steadily during the period, while in the second, they declined throughout.
The first year saw sales climb steadily during the period, while in the second, they declined throughout.
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