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【单选题】
中国药典(2005年版)三部中收载的药物主要是A.
化学合成药
B.
抗生素
C.
放射性药物
D.
生物制品
E.
生化药物
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举一反三
【单选题】The landmark of ( ) is Nuorilang Waterfalls with a drop of more than 20 meters.
A.
Huanglong
B.
Jiuzhaigou
C.
Taishan Mountain
D.
Huangshan Mountain
【简答题】A．There are no rapids or watells. B．There is a constant, strong wind. C．Navigation is rather difficult. D．Frequent storms cause problems for riverboats.
【简答题】A.Them are no rapids or watells. B.There is a constant, strong wind. C.Navigation is rather difficult. D.Frequent storms cause problems for riverboats.
【单选题】The massive waterfalls which straddle the international border separating Canada and the United States is known as
A.
Horseshoe Falls.
B.
American Falls.
C.
Bridal Veil Falls.
D.
Niagara Falls.
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