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问题 单项选择题

外源性哮喘的临床表现是

A．多见于青壮年
B．常于冬季或气候骤变时发病
C．前驱症状后发病急，缓解快
D．有呼吸道感染症状
E．起病慢，症状缓解后哮鸣音可持续多时

答案

参考答案：C

单项选择题 A1/A2型题

关于肩关节周围炎，下列哪项是错误的（）。

A.本病是关节周围多种软组织的慢性炎症

B.特征是肩痛，活动限制和肌肉萎缩

C.外展，外旋受限最严重

D.病变结果为关节无菌性坏死

E.本病能自愈
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单项选择题

Steve gets on the elevator at the 11th floor of a building and rides up at a rate of 57 floors per minute. At the same time Joyce gets on an elevator on the 51st floor of the same building and rides down at a rate of 63 floors per minute. If they continue traveling at these rates, at which floor will their paths cross

A．19

B．28

C．30

D．32

E．(E) 44
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