单项选择题

A．70 dollars.
B．49 dollars.
C．21 dollars.
D．12 dollars.
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单项选择题
A．It makes our life more interesting.B．It enables us to acquire first-hand knowledge.C．It helps develop our personalities.D．It brings about changes in our lifestyle.
A．It makes our life more interesting.
B．It enables us to acquire first-hand knowledge.
C．It helps develop our personalities.
D．It brings about changes in our lifestyle.
单项选择题
A．He wanted to work with his friend.B．He enjoyed travelling around the world.C．He wanted to go to Spain.D．He was rejected by the engineering firm.
A．He wanted to work with his friend.
B．He enjoyed travelling around the world.
C．He wanted to go to Spain.
D．He was rejected by the engineering firm.
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