第18题: [单项选择]The first two stages in the development of civilized man were probably the invention of weapons and the discovery of fire, although nobody knows exactly when he acquired the use of the ______. A. latter B. latest C. later D. last 参考答案:A 答案解析:此题考查的是形近词辨析，latter：后一个；latest：最近的，later：后来的，last：最后。因此正确答案是A。
