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【简答题】
A．Einstein had no other interests besides science. B．Germans usually have a high respect for science. C．Einstein was forced to serve in the German army. D．Einstein's reputation was ruined because of his work during WW I.
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举一反三
【单选题】雄黄的主要成分是
A.
三氧化二砷(As 2 O 3 )
B.
二硫化二砷(As 2 S 2 )
C.
含水硫酸钠(Na 2 SO 4 ·10H 2
D.
含水硅酸镁[Mg(Si 4 O 10 )(O 2 ]
E.
含水硫酸钙(CaSO 4 ·2H 2
【单选题】---My son hardly ever eat vegetables ____ it’s good for his health. ---That is not a good habit.
A.
and
B.
but
C.
although
D.
through
【简答题】雄黄的主要成分是（ ）第 28 题 雄黄的主要成分是（ ）
【简答题】雄黄的主要成分是 查看材料
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