Fertilizers are used primarily to enrich the soil and______ yield.

admin2014-05-25 74

问题 Fertilizers are used primarily to enrich the soil and______ yield.

选项 A、increasing
B、increase
C、to increase
D、have increased

答案C

解析 to increase用来与to enrich保持结构上的平行。

转载请注明原文地址:https://kaotiyun.com/show/E9UC777K

英语

相关试题推荐

随机试题

最新回复(0)