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【单选题】
慢性单纯性鼻炎与慢性肥厚性鼻炎临床上主要的鉴别点是:A.
头痛程度
B.
有无咽痛
C.
鼻分泌物性质
D.
有无鼻音
E.
对血管收缩剂的反应
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举一反三
【单选题】What are the functions of a number of holes in the wall?
A.
t o throw garbage and papers
B.
to water plants and flowers
C.
to shoot arrows and to watch enemies.
D.
to shoot animals and watch the war
【单选题】Earth has an atmosphere, which protects the surface from harmful rays.
A.
minerals
B.
substances
C.
gases
D.
beams
【判断题】The typical North American diet mainly consists of fast food which are low in substances that can cause health problems. ()
A.
正确
B.
错误
【单选题】国民党一大是中国民主主义革命时期一个具有重大意义的事件,关于这次大会表述正确的是( )
A.
会议召开于1924年初的上海
B.
会后马上就进行了北伐
C.
会议召开标志着三民主义的诞生
D.
会上国共实现了第一次合作
【单选题】What does the professor mean when he says this?
A.
Little is known about defining a substance as an air pollutant.
B.
The substance isn't an air pollutant when there is a very little in the air.
C.
The substance can't be judged to be an air pollutant only from its actual concentration level.
D.
The actual concentration level means little to peopl
【单选题】What does the professor mean when he says this?
A.
Little is known about defining a substance as an air pollutant.
B.
The substance isn't an air pollutant when there is a very little in the air.
C.
The substance can't be judged to be an air pollutant only from its actual concentration level.
D.
The actual concentration level means little to people.
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