引起患者气喘的最主要机制是
A.心率加快
B.肺血管痉挛
C.喉痉挛
D.大气道阻塞
E.支气管痉挛
参考答案:E
Students in that school are judged ________what they have achieved in their studies.[ ]
A. in spite of
B. in charge of
C. in favor of
D. in terms of
用户口令随着使用的时间变长而变的(),经常性的改变用户口令有利于()。