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【单选题】
08F 牌号中, 08 表示其平均碳的质量分数是 。 A.
0.08%
B.
0.8%
C.
8%
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【单选题】As soon as she entered the room, the girl caught sight of the flowers _________ by her mother.
A.
buying
B.
being bought
C.
were bought
D.
bought
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