Britain has the highest ____ of road traffic in the world - over 60 cars for every mile of road.A)
问题描述：
Britain has the highest ____ of road traffic in the world - over 60 cars for every mile of road.A)
Britain has the highest ____ of road traffic in the world - over 60 cars for every mile of road.
A) popularity B) density C) intensity D) prosperity
答
density