Because of the heavy snow,many parts of the country side are only____by helicopter
问题描述：
Because of the heavy snow,many parts of the country side are only____by helicopter
A available B appropriate C accessible D achievable
这四个单词有什么区别呢>?选什么呢?
答
A可利用的.B适当的,合适的.C可接近的,可到达的.D可完成,可实现的.按照句意,选C.