下列城市中雨季开始最早，结束最晚，雨季最长的是 [ ]

A、武汉 　 　

B、上海　　　　

C、广州　　　

D、哈尔滨

—I think math is _____ English.

—I don't think so. I think English is more difficult. [ ]

A. as useful as

B. as important as

C. as difficult as

D. as interesting as