咳嗽变异性哮喘最重要的诊断条件是 A．咳嗽持续或反复发作＞1个_爱下问搜题

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问题单项选择题

咳嗽变异性哮喘最重要的诊断条件是

A．咳嗽持续或反复发作＞1个月

B．临床无感染征象

C．用支气管扩张剂可使咳嗽发作缓解

D．有个人或家庭过敏史

E．经抗生素治疗无效

答案

参考答案：A

选择题

Her ambition is _____ part of the national team for the next Paralympic Games.

A．of becoming

B．becoming

C．to become

D．that become

选择题

Our rain forests are_________ , so we should protect them.

A. dangerous B. in danger C. in safety