梨状孔的外侧为()。
A.上颌骨额突
B.筛骨垂直板
C.腭骨突起
D.鼻骨
E.额骨鼻突
参考答案:A
5岁患儿,男,咳喘反复发作二年余。昨日突发咳喘,喉间痰鸣,声高息涌,张口抬肩,呼气延长。临床诊断最可能是()
A.咳嗽
B.感冒挟痰
C.肺炎喘嗽
D.哮喘
E.顿咳
—How long have you studied English?
—_____. [ ]
A. For 5 years
B. 5 years ago
C. Since 5 years
D. 5 years before