病人出现三凹征,吸气费力,吸气时间明显延长,可见于下列哪些疾病
A. 气管异物
B. 喉头水肿
C. 胸腔积液
D. 支气管哮喘
E. 阻塞性肺气肿
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consider campus friendship important common explian rely complain schedule cram1 I’ll ___________ it simply so you can understand.2 Fresh fruits and vegetables are _____________ for us.3 I know I can ________ on you to sort it out.4 You can’t put a price on _____________ .5 He had very little in ___________ with his sister.6 He came to _____________ about the volume of the music.7 Do you like __________ life?8 What is your for tomorrow?9 The teacher tried tohis puipls.10 Money is _____________ to be the root of all evils.
二进制数字调制的抗干扰能力比多进制数字调制弱。
A. 对
B. 错
多进制传输系统中,一个码元传输多个bit信息。
A. 对
B. 错
对脉搏生理性变化的叙述,错误的是
A. 幼儿比成人快
B. 情绪激动时增快
C. 禁食可使脉率减慢
D. 同龄男性比女性快
E. 休息睡眠时减慢