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【单选题】
中国药典规定，药物中有机溶剂苯的残留量不得超过A.
0.2%
B.
0.02%
C.
0.002%
D.
0.0002%
E.
0.00002%
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举一反三
【简答题】选词填短文（用所给词的正确形式填空）（15分） song paint classmate play Saturday friend music sing swim same I have four good __1__ __. They’re Jennifer, Victor, Cindy and Leila. We are in...
【简答题】The plane__________ at about 9:a.m. despite the heavy fog.
【简答题】The passage mentions that many people believe that if you don't eat breakfast, you will______. [A] not lose weight [B] be healthier [C] gain weight [D] lose weight
【简答题】什么情况下选择航空运输？
【简答题】The plane__________ at about 9:a.m. despite the heavy fog.
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