返回列表 发帖

GWD-31-Q17 有没有答案?请牛牛帮忙分析啦

It is crucially important to farmers that the herbicides they use to control weeds not (?) damage their crops. One very effective herbicide is safe for corn, but soybeans are damaged even by the herbicide’s residue, which remains in the soil more than a year after the herbicide is applied. Soybeans and corn are not sown together in the same filed; nevertheless, most farmers are reluctant to use the herbicide on their corn.

 

 

Which of the following, if true, provides the strongest justification for the farmers’ reluctance?

A: The residue of the herbicide in the soil a year after application is not enough to control most weeds effectively.

B: To maintain the nutrients in the soil, corn and soybeans are often planted in a field in alternate years.

C: The demand for soybeans is growing faster than is the demand for corn.

D: For maximum yield, soybean plants are grown closer together to each other than are corn plants.

E: The application of herbicides is less critical for soybean than for corn cr

收藏 分享

QUOTE:
以下是引用boussoler在2008-6-28 20:09:00的发言:

两月前, 好像自己钻牛角尖了. 现在看OG的解释多清楚啊!

感谢大家!

[em10]

欢迎大家来语法区交流

TOP

QUOTE:
以下是引用qwrtfdse在2008-6-26 20:24:00的发言:
只有种植在一块地上才有影响,轮植(planted in a field in alternate years)将会产生这种影响

 

good,  thanks!

TOP

哦,多谢大侠!!!!!!!!!!!!!!!

TOP

两月前, 好像自己钻牛角尖了. 现在看OG的解释多清楚啊!

感谢大家!

TOP

只有种植在一块地上才有影响,轮植(planted in a field in alternate years)将会产生这种影响

TOP

B

题目中指出:虽然并不种植在一起,但是农民也不愿意用伤害corn而有利于soybeans的农药

B:planted alternate years 指出corn和soybeans的联系, 解释了dilemma

TOP

返回列表

站长推荐 关闭


美国top10 MBA VIP申请服务

自2003年开始提供 MBA 申请服务以来,保持着90% 以上的成功率,其中Top10 MBA服务成功率更是高达95%


查看