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【单选题】
含锑药物的砷盐检查方法为A.
B.
碘量法
C.
白田道夫法
D.
契列夫法
E.
Ag-DDC
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举一反三
【简答题】He has known both grief and happiness.
【单选题】It is obvious _________ he has known the news and he is very satisfied with the result.
A.
which
B.
that
C.
what
D.
whether
【单选题】---- ____________ he has known the good news. ---- ______ is no wonder he is so excited.
A.
It is likely that; It
B.
It is probably that; There
C.
He is likely that; There
D.
He is possible that ; It
【简答题】简要叙述如何进行脱硫。
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