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
2024-06-08
55
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:http://tihaiku.com/zcyy/3624559.html
相关试题推荐
[originaltext]JoeSmithhadbeenbroughtupinanorphanage.Heenviedpeop
[originaltext]JoeSmithhadbeenbroughtupinanorphanage.Heenviedpeop
[originaltext]Asatradition,workersincompaniesarealwaysrequiredtow
[originaltext]Asatradition,workersincompaniesarealwaysrequiredtow
[originaltext]Didyouknowthatvegetablescanbetrickedintogrowinginc
[originaltext]Didyouknowthatvegetablescanbetrickedintogrowinginc
[originaltext]M:Didyouhearonthenewstodayaboutthat...uh...murderer
[originaltext]M:Michaeliscertainlythefunniestpersoninclass.Hecanalwa
[originaltext]M:Michaeliscertainlythefunniestpersoninclass.Hecanalwa
[originaltext]M:Michaeliscertainlythefunniestpersoninclass.Hecanalwa
随机试题
MessageCOMPLAINTSComplaint:NickLee,(1)______CarpetCompanyF
Choosethecorrectletter,A,BorC.[br]Thecampuscrimeratehas______sofa
【B1】[br]【B5】[originaltext]I’mMr.Britain,theheadlibrarian,andtoday
Manycriticsconsiderthatfarmorestressisplacedonachievementsinat
在申请领取施工许可证应当具备的条件中,下列哪一条是错误的?()A.已经办理该
关于儿童青少年每天身体活动时间和强度每天累计至少达到()A.30分钟中等强度
不属于苯二氮卓类药物作用特点的是A.具有抗焦虑作用 B.具有外周性肌松作用
酶促反应药动学研究的是A:酶分子结构 B:酶的特异性 C:酶的活性中心 D
如图是某复杂电路的一部分,A、B两点间的电位差为()V。 A.10
下列行为中,属于风险转移的有()。A.将已做完前期工作的项目转给他人投资
最新回复
(
0
)