首页
登录
职称英语
[originaltext] In 1946 there was a program in the Rio Grande valley to subst
[originaltext] In 1946 there was a program in the Rio Grande valley to subst
游客
2023-09-12
79
管理
问题
In 1946 there was a program in the Rio Grande valley to substitute the hybrid com, which is produced by mixing several types of corn, for the native corn. The native corn was of poor nutritional quality and gave a poor quantity of grain, while the hybrid corn was of excellent quality and gave about three times as large a crop as the native variety. In the first year, half of the 84 farmers in the village planted the hybrid corn and doubled the corn production. Three years later, however, only three farmers planted the hybrid corn. The others were planting the traditional variety. At the beginning of the project, the program leader studied the pattern of the natural relations of plants, animals, and people to each other and to their surroundings of the area and showed films demonstrating the superiority of the new corn. The farmers agreed that the hybrid com had great advantages. The size of the corn confirmed these advantages. Why did they stop planting it? They complained that it wasn’t good for cooking and they didn’t like the flavor.
选项
A、Replacing the native corn with the hybrid corn.
B、Replacing the hybrid corn with the native corn.
C、Replacing the new type of corn with the traditional corn.
D、Replacing the traditional corn with the native corn.
答案
A
解析
词义辨析题 本题的关键在于理解词组substitute A for B,意为用A代替B,因此是杂交谷物代替本土谷物。
转载请注明原文地址:https://tihaiku.com/zcyy/3008293.html
相关试题推荐
[originaltext]Anewreportsaysthecastofstudiesatpubliccollegesint
[originaltext]Anewreportsaysthecastofstudiesatpubliccollegesint
[originaltext]Today,airtravelisfarsaferthandrivingacaronabusym
[originaltext]M:HowdidyoulikeourAmericanHistoryclassyesterday?W:Well
[originaltext]M:HowdidyoulikeourAmericanHistoryclassyesterday?W:Well
[originaltext]M:HowdidyoulikeourAmericanHistoryclassyesterday?W:Well
[originaltext]M:Hurryup,Kate.We’llbelate.W:Iamhurrying.Ican’tmove
[originaltext]M:Excuseme.I’mhavingtroublehearinginthebackoftheroom.
[originaltext]M:Excuseme.I’mhavingtroublehearinginthebackoftheroom.
[originaltext]M:Excuseme.I’mhavingtroublehearinginthebackoftheroom.
随机试题
LadyHouseWeareaprofessionalhairdosaloon.Ourhairdressersareveryexcell
Theamazingsuccessofhumansasa【1】istheresultoftheevolutionarydevel
【S1】[br]【S8】up∧uninspired→with根据上一行中的连词or可确定hands与draws形式一致,故正确。endsup在本句中的主语
甲假冒乙的专利产品获得利润2万元。对此,管理专利工作的部门可以对甲采取以下哪些处
将薪酬的内部一致性和外部竞争性的有效性标准进行平衡,是( )的结果。A.薪酬调
在CSS中,以“()”开头来表示ID选择器的定义。A.& B.%
从所给的四个选项中,选择最合适的一个填入问号处,使之呈现一定的规律性: A.如
不属于犀角地黄汤的药物是A.犀角 B.生地黄 C.丹参 D.丹皮
A.A型药品不良反应 B.B型药品不良反应 C.C型药品不良反应 D.新的
第二恒磨牙窝沟封闭的适宜年龄是A.6~7岁 B.7~9岁 C.9~11
最新回复
(
0
)