皮皮学，免费搜题
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搜题
【单选题】
本实验的目的是采用纸层析法分离鉴定A.
氨基酸
B.
蛋白质
C.
脂肪
D.
葡萄糖
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反馈参考答案：
举一反三
【单选题】Press the white button on the armrest and lean ______________the seat at the same time.
A.
of
B.
at
C.
in
D.
against
【简答题】Press the white button ______________ the armrest and lean against the seat at the same time.
【单选题】Press the white button ______________ the armrest and lean against the seat at the same time.
A.
of
B.
at
C.
in
D.
on
【多选题】How does the author summarize the volunteer experience?
A.
She will remember this experience forever.
B.
It is valuable.
C.
It is hard and tiring.
D.
It is irrelevant and useless now.
【简答题】Press the white button on the armrest and lean against the seat ______________.
【简答题】Press the white button on the armrest and lean ______________the seat at the same time.
【单选题】Press the white button on the armrest and lean against the seat ______________.
A.
on time
B.
in time
C.
at the same time
D.
make up time
【简答题】Summarize a situation where you took the initiative to get others going on an important task or issue, and played a leading role to achieve the results you wanted.
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