The price of the coal will vary according to how far it has to be transported and how expensive the freight ______ are.

What will be the ultimate result of the proposal as to the sugar price in Europe？A．Reduced

The price of vegetables varies according to the weather.A．changesB．risesC．fallsD．jumps

The discharge head of a centrifugal pump will vary directly with the _____.A.change in imp

The price of the tickets will come______after the performances begin.A．backB．downC．upD．out

We all think the prices of the computers will so

The price of vegetables varies according t