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单项选择题

Contact your doctor if the cough persists.

A．insists
B．perseveres
C．continues
D．resists
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热门试题

单项选择题Their interpretation was faulty.

A．wrong
B．ambiguous
C．unclear
D．unbelievable

单项选择题He achieved success through hard work.

A．reached
B．reaped
C．attained
D．took