最能提示慢支并发阻塞性肺气肿的临床表现是
A．咳嗽咳痰加剧B．胸痛不适明显C．呼吸困难逐渐加重D．焦虑烦躁不安E．厌食恶心呕吐
参考答案：C
连词组句。
1. with, busy, he, us, too, time, is, to, spend
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2. to, is, brother, a, not, motorcycle, my, old, ride, enough
3. she, old, enough, to , go, school, is, to
4. thank, for, you, have, all, you, done, me, for
销售人员在处理顾客拖延时，可采用的技巧有（）
A.提供证明
B.专门度身定制
C.转销低价商品
D.进行了对比分析
