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【单选题】
测定酸度时,样品处理将样品中的 ( ) 除去,避免对测定结果的干扰A.
二氧化碳
B.
二氧化硅
C.
二氧化氮
D.
二氧化硫
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反馈参考答案：
举一反三
【单选题】___ apples and milk on sale in this Downtown Supermarket.
A.
3
B.
There are
C.
There is
D.
There isn't
【单选题】_apples and milk on sale in this supermarket.
A.
There are
B.
There is
C.
There isnot
【单选题】—Do you know the girl __is talking to our English teacher? —Yes. She’s my sister.
A.
who
B.
whom
C.
which
D.
Whose
【简答题】500°C以下的中低温通常可以采用( )来测量。
【单选题】apples and milk on sale in this Downtown Supermarket.
A.
There are
B.
There is
C.
There isn't
【单选题】_____apples and milk on sale in this shop
A.
3
B.
There are
C.
There is
D.
There isn't
【简答题】____ some apples and milk on sale
in this supermarket.A. There are B. There is C. There isn’t D. There aren’t
【单选题】To our great surprise, the blind girl learned to _______ music so well just by ear. [ ]
A.
give
B.
take
C.
carry
D.
play
【单选题】Cui Jianping who gave his life to save a girl in America ten years ago was _____ honour to our school. A memorial is held here every year in _____ honour of him. [ ]
A.
an; the
B.
an; /
C.
the; the
D.
/; /
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