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第1题

Many kinds of animals are believed to have _________ from the earth 　A. withdrawn B.vanished C.found D.hung
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第2题

The _______ work continued for more than a week but there was still no sign of the missing boy. 　A. research B.rescue
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第3题

HSB模式里H.S.B各代表:( ) [ 1 分 ] A.色相、饱和度、亮度 B.色相、亮度、饱和 C.饱和度、亮度、色相 D.亮度、色相、饱和度
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第4题

He _______ to study harder in the future so that he could have more opportunities to find a better job. 　A. resolved
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