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【单选题】
某中药总生物碱中含有 季铵碱(A) 酚性胺碱(B) 非酚性胺碱(C)水溶性杂质(D)脂溶性杂质(E)及现有下列分离流程,试将每种成分可能出现的部位填入括号中。A.
1C-2E-3B-4A-5D
B.
1C-2E-3D-4B-5A
C.
1E-2D-3C-4B-5A
D.
1D-2C-3E-4A-5B
E.
1C-2E-3D-4A-5B
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举一反三
【单选题】The boy, _____ parents went to the US last year, felt lonely.
A.
whose
B.
which
C.
whom
D.
that
【单选题】You should have felt ______yourself for not helping the boy who was struggling desperately for life in the water. [ ]
A.
shameful of
B.
shame with
C.
ashamed of
D.
shamed with
【单选题】With all the family members ______ on vacation without him, the boy felt extremely lonely and afraid.
A.
to have gone
B.
going
C.
had gone
D.
gone
【单选题】the boy felt that
A.
he was appreciated by his family
B.
life was dull and there was no change whatever
C.
he was regretting being a member of the family
D.
his father often ignored him
【单选题】在淘宝上虚假交易会受到的处罚是( )
A.
不会被处罚
B.
虚假交易是违法行为，一经发现严肃处理
C.
虚假交易20笔以下不会被处罚
D.
徐晓交易10笔以下不会被处罚
【单选题】The boy felt that _________.
A.
he was appreciated by his family
B.
life was dull and there was no change whatever
C.
he was regretting being a member of the family
D.
his father often ignored him
相关题目：
【单选题】The boy, _____ parents went to the US last year, felt lonely.
A.
whose
B.
which
C.
whom
D.
that
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