题干
Today, WeChat（微信）becomes very popular, and more and more people like to use it to each other.
A：depend on
B：communicate
C：believe in
答案(点此获取答案解析）
B
Today, WeChat（微信）becomes very popular, and more and more people like to use it to each other.
A：depend on
B：communicate
C：believe in
表示图上1厘米的线段相当于实际距离( )千米，改写成数值比例尺是( )。