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The moon was obscured by thick clouds.
A:held
B:prevented
C:darkened
D:blackened
B:prevented
C:darkened
D:blackened
参考答案
参考解析
解析：本句话的意思是：“厚厚的云朵遮住了月亮。” prevent：预防、阻止，例如： These rules are intended to prevent accidents．这些规则旨在防止事故发生。hold：持有、保留，例如：He always holds a pipe between the teeth．他嘴里总叼着烟斗。darken：使模糊、变黑，例如： We darkened the room by closing the shutters．我们关上百叶窗，使房间变暗了。blacken：使变黑、诽谤，例如：The smoke had blackened the white walls of the house．烟把房子的白墙都熏黑了。
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