The v__1__(名词"量,容量,音量"等) of traffic on the roads has increased dramatically in recent years.

The _____ of traffic on the roads has increased dramatically in recent years.

A、

amount

total

summary

volume意思是“量”，The volume of traffic意思就是：交通量，符合题意。

The (volume) of traffic on the roads has increased dramatically in recent years.

A、

the amount of sound produced by a television, radio etc.

a measurement of the amount of space that a substance or object fills, or the amount of space in a container

the total amount of something, especially when it is large or increasing

The ________ of home computers has increased greatly in recent years.

The ____________ of smart phones has increased greatly in recent years.

A、popularity
B、familiarity
C、population
D、explanation