It is less well-known that fully 80 percent of the world's fertilizerare met by synthesizing am

题目简介

It is less well-known that fully 80 percent of the world's fertilizerare met by synthesizing am

题目详情

It is less well-known that fully 80 percent of the world's fertilizer        are met by synthesizing 
ammonia from natural gas and steam.      

A. requirements      
B. acquirement      
C. treatment      
D. agreement
题型:单选题难度:中档来源:同步题

答案

A

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