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
50
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
[originaltext]W:Maryisannoyedaftersomeonetoldherthatherpearlnecklace
【B1】[br]【B9】[originaltext]Tobesuccessfulinajobinterview,youshould
Acaninecoptookearly【B1】______afterbossesatSouthYorkshirePolicenote
发明专利的权利人有权禁止任何单位或个人未经其许可实施其专利,即为生产经营目的(
A.甲状腺癌 B.甲状腺囊性腺瘤 C.两者均可 D.两者均无短期内迅速增大
出现伤人事故时,心跳、呼吸停止者应立即()。A.心肺复苏 B.人工呼吸
银行个人贷款产品的市场定位过程包括( )。A.识别重要属性 B.制定定位图
患者,女,16岁,右侧下颌骨逐渐膨大8年,近来增大速度减慢。检査见下颌骨体部弥漫
下列工程质量控制主体中,属于监控主体的是( )。A.勘察设计单位 B.施工单位
用于面板堆石坝水下部分的石料的软化系数不低于()。A.0.65 B.0.75
最新回复
(
0
)