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问题 单项选择题

PNAR是指（）。

A.季节性鼻炎

B.常年性鼻炎

C.间歇性鼻炎

D.常年性非过敏性鼻炎

答案

参考答案：D

选择题

He found          difficult to improve his English          the teacher’s help.

A．it is; without

B．it was; with

C．it; without

D．that is; with
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选择题
Henry's news report covering the conference was so _____ that nothing had been omitted.
A．understandingB．comprehensibleC．comprehensiveD．understandable
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