The Fields Medals are presented every______years.A．twoB．fourC．threeD．five

What were （or are) the biggest pressures on your last （or present) job？在你的前一份（或现在

Documents are presented in accordance with the terms of an unconfirmed documentary credit payable at

Many farmers are working in the fields.（英译中)

British companies are active in all major fields of the manufacturing industry, partic

How many companies are presenting products in the Consumer Electronics Show？A．More than tw

In the opinion of the speaker, ____ are being destroyed terribly at present.A．the oceansB．