题目

绿豆种子发芽需要的最基本条件有( )。 A . 光照、水分、温度、空气和土壤 B . 一定的水分、适宜的温度和空气 C . 光照、水分、温度和空气 答案：B The taxi _________on the way to the airport. As a result, Lynn was late for her flight. A. broke up           B. broke out        C. broke down                   D. broke off