单项选择题

A．It can never be done even with high technology.
B．It is the best way to restore damaged eyesight.
C．It is a major achievement in eye surgery.
D．It can only be partly accomplished now.
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单项选择题
A．Replace its out-dated equipment. B．Improve the welfare of affected workers. C．Follow government regulations strictly. D．Provide extra health compensation.
A．Replace its out-dated equipment.
B．Improve the welfare of affected workers.
C．Follow government regulations strictly.
D．Provide extra health compensation.
单项选择题
A．It may make the wearer feel tired. B．It will gradually weaken the eyes of adults. C．It can lead to the loss of vision in children. D．It can permanently change the eye structure.
A．It may make the wearer feel tired.
B．It will gradually weaken the eyes of adults.
C．It can lead to the loss of vision in children.
D．It can permanently change the eye structure.
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