Is it true that light travels in a straight line and never ______ ______ it hits something that reflects it.A.turns; untilB.bends; unlessC.breaks; whenD.changes; until
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B解析试题解析:考查单词意思,turns意思“旋转”,bends意思“弯曲”,breaks意思“破坏”,changes意思“改变”,句子意思“光直线传播从不歪曲,除非它碰到反射它的东西这种说法正确吗?”,所以选B
考点:考查单词意思
点评:注意固定句型it is/was+adj that…意思“什么怎么样”,unless意思“除非”,引导条件状语从句。