首页
登录
职称英语
DDT, the most powerful pesticide the world had ever known, exposednature’s
DDT, the most powerful pesticide the world had ever known, exposednature’s
游客
2023-11-26
44
管理
问题
DDT, the most powerful pesticide the world had ever known, exposed
nature’s vulnerability. Unlike most pesticides, which effectiveness is limited 【M1】______
to destroy one or two types of insects, DDT was capable of killing hun- 【M2】______
dreds of different kinds at once. Developed in 1939, it first distinguished
itself during World War II, cleaning South Pacific islands of malaria- 【M3】______
caused insects for U.S. troops, while in Europe being used as an effective 【M4】______
de-lousing powder. Its inventor was awarded by the Nobel Prize. 【M5】______
When DDT became available for civilian use in 1945, there were only
a few people who expressed the second thoughts about this new miracle 【M6】______
compound. One was nature writer Edwin Way Teale, who warned, ""A spray
as discriminate as DDT can upset the economy of nature as much as a revo- 【M7】______
lution upsets social economy. Ninety percent of all insects are good, but if 【M8】______
they are killed, things go out of kilter right away."" Another was Rachel Car
son, who wrote to the Reader’s Digest to propose an article about series of 【M9】______
tests on DDT being conducted not far from which she lived in Maryland. 【M10】______
The magazine rejected the idea. [br] 【M9】
选项
答案
∧series — a
解析
series这个名词属于单数复数同形,它经常与a和of构成词组a series of表示“一系列的”,如:a series of meetings,a series of explosions,不能望形生意,认为series就是复数,要对这种特殊的名词特别留意。
转载请注明原文地址:https://tihaiku.com/zcyy/3220184.html
相关试题推荐
LanguageandHumanityLanguageispowerfulanditcanhe
LanguageandHumanityLanguageispowerfulanditcanhe
LanguageandHumanityLanguageispowerfulanditcanhe
LanguageandHumanityLanguageispowerfulanditcanhe
LanguageandHumanityLanguageispowerfulanditcanhe
LanguageandHumanityLanguageispowerfulanditcanhe
LanguageandHumanityLanguageispowerfulanditcanhe
LanguageandHumanityLanguageispowerfulanditcanhe
LanguageandHumanityLanguageispowerfulanditcanhe
LanguageandHumanityLanguageispowerfulanditcanhe
随机试题
Whatisthepurposeofthetalk?[br][originaltext]M:Conferenceguestsarere
【B1】[br]【B12】A、supportedB、discoveredC、wateredD、disturbedA本题测试动词词义辨析。suppor
YoungpeopleintheUnitedStatesarefallingbehindtheiroverseaspeersin
[originaltext]Iamhonoredtobewithyoutodayatyourcommencementfromo
某公路工程人工夯实填土,工程量为5000m3,在该地区发布的人工单价是100元/
下列属于公路项目环境保护主要项目的有( )。A.运营期的环境保护设施的运行
在相同的条件下,重复抽样的抽样误差一定比不重复抽样的抽样误差大。( )
某实行监理的工程,建设单位通过招标选定了甲施工单位,施工合同中约定:施工现场的建
下列细菌中哪种最常引起医院感染?( )A.伤寒沙门菌 B.结核分枝杆菌 C
A.0~1岁 B.1~3岁 C.2~3岁 D.3~7岁 E.7岁以前人格
最新回复
(
0
)