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【简答题】
铅碱性精炼渣的回收目的是 。 A. 回收NaOH和NaCl以及锡、砷、锑。
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反馈参考答案：
举一反三
【单选题】Rather than ______ home, he always prefers _______ on the street when his parents quarrel.
A.
go; wander
B.
going; wander
C.
go; to wander
D.
to go; wandering
【单选题】When his uncle to school every day? [ ]
A.
do; go
B.
does; go
C.
is; goes
D.
is; going
【简答题】When did Mr．Mm go' to see me plot chosen by his son ?
【单选题】The worker sometimes asks Mr. Cook to go to his house when his boy is ill at two or three in the night.
A.
Right.
B.
Wrong.
C.
Doesn't say.
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