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【单选题】
某产品学习率为 80%,生产第一件产品消耗工时10h,那么生产到第三件产品时消耗工时为()A.
7.02h
B.
8.15h
C.
8.86h
D.
9h
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举一反三
【简答题】She________________(从事表演行业) at 8 and became famous in a couple of years.
【简答题】Over the next couple of years the dollar is likely to fall and bond yields rise as ______ (投资者要求更高的风险回报).
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【单选题】细胞内产生的废物排出体外是通过 [ ]
A.
消化系统、呼吸系统、神经系统
B.
消化系统、泌尿系统、运动系统
C.
呼吸系统、泌尿系统、皮肤
D.
生殖系统、内分泌系统、肌肉
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