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【单选题】
在进行中药鉴别时,气相色谱法的定性依据是A.
比移值
B.
保留时间
C.
最大吸收波长
D.
最小吸收波长
E.
峰面积
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反馈参考答案：
举一反三
【单选题】I felt _____ during those dark days.
A.
hopeful
B.
relaxing
C.
hopelessly
D.
hopeless
【单选题】I felt uncomfortable there was a long silence during the meal.
A.
and
B.
but
C.
because
D.
so
【单选题】I felt very _______ during my first hours in the country
A.
alien
B.
foreig n
C.
vague
D.
queer
【单选题】下面几种溶液: 1 0.1mol·L -1 Al 2 (SO 4 ) 3 2 0.2mol·L -1 ZnSO 4 3 0.3mol·L -1 NaCl 4 0.3 mol·L -1 蔗糖 。按溶液的 渗透压 由高到低排列,顺序正确的是( )
A.
①②③④
B.
③④②①
C.
④②①③
D.
④②③①
E.
③①②④
【单选题】I visited quite a few relations and felt _____ tired during the Spring Festival. [ ]
A.
a bit of
B.
a lot of
C.
a bit
D.
a few
【单选题】I felt uncomfortable _________ there was a long silence during the meal.
A.
and
B.
because
C.
but
D.
so
相关题目：
【单选题】I felt very _______ during my first hours in the country
A.
alien
B.
foreig n
C.
vague
D.
queer
参考解析：
知识点：
题目纠错 0
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