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【单选题】
在下列含氧酸中酸性最强的是A.
H4P2O7
B.
H3PO4
C.
H3PO3
D.
H3PO2
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举一反三
【单选题】A student who becomes addicted to drugs may______.
A.
cheat in the examinations
B.
daydream in the class
C.
drop out of school
D.
lose confidence in himself
【多选题】下列选项中,属于数学中的无限在生活中的反映的是()。
A.
井盖是圆的
B.
大烟囱是圆的,但是砌烟囱的砖是直的
C.
水往低处流
D.
锉刀锉一个光滑零件,每一刀锉下去都是直的
【单选题】A lucid dream is like a daydream, in which you can go through fantastic experiences while fully awake.
A.
Y
B.
N
C.
NG
【简答题】翻译: daydream
【单选题】Woman: Does the rent include electricity bills? Landlord: ______
A.
What a daydream you are having!
B.
It doesn't usually include the electricity bill.
C.
I don't think so,I'm afraid.
D.
I'm not sure.I'll ask if you don't mind.
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