摘要: 选D.复合介词in case of有两个意思.一是表示条件.意为“如果 ,二是表示目的.意为“以防 .如: In case of fire, call 119. 万一失火.就打119电话. Take an umbrella with you in case of rain. 带把雨伞.以防下雨.
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