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
2024-12-25
30
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 (1)______
to destroy one or two types of insects, DDT was capable of killing hun- (2)______
dreds of different kinds at once. Developed in 1939, it first distinguished
itself during World War II, cleaning South Pacific islands of malaria- (3)______
caused insects for U.S. troops, while in Europe being used as an effective (4)______
de-lousing powder. Its inventor was awarded by the Nobel Prize. (5)______
When DDT became available for civilian use in 1945, there were only
a few people who expressed the second thoughts about this new miracle (6)______
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- (7)______
lution upsets social economy. Ninety percent of all insects are good, but if (8)______
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 (9)______
tests on DDT being conducted not far from which she lived in Maryland. (10)______
The magazine rejected the idea. [br] (9)
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/3884226.html
相关试题推荐
WhichofthefollowingisNOTamongthecriteriaofthe100mostpowerfulwomen
WhichofthefollowingisNOTamongthecriteriaofthe100mostpowerfulwomen
Povertyexistsbecauseoursocietyisanunequalone,andtherearepowerful
Povertyexistsbecauseoursocietyisanunequalone,andtherearepowerful
Povertyexistsbecauseoursocietyisanunequalone,andtherearepowerful
Povertyexistsbecauseoursocietyisanunequalone,andtherearepowerful
Povertyexistsbecauseoursocietyisanunequalone,andtherearepowerful
DDT,themostpowerfulpesticidetheworldhadeverknown,exposednature’s
DDT,themostpowerfulpesticidetheworldhadeverknown,exposednature’s
DDT,themostpowerfulpesticidetheworldhadeverknown,exposednature’s
随机试题
交通运输结构是指各种交通运输方式内外部各个方面的构成和联系。外部是指各种交通运输
高层建筑内设有固定座位的观众厅,其疏散走道、出口等的要求是( )。A.疏散出口
测定水中微量氟,最适合的方法是( )。A.沉淀滴定法 B.络合滴定法
专用铁路货物运杂费的收费项目和收费标准管理权限归属于()。A.铁路局集团有限公
社会舆论是医德评价的重要方式之一,下列除哪一项之外,都是可取的()A.有
患儿2岁,入托体检发现HBsAg阳性,HBeAg阳性,抗-HBc阳性,肝功能正常
根据协定价格与标的物市场价格的关系.我们可以把期权分为()。 Ⅰ.看涨期权
六淫之中只有外感而无内生的邪气是A.暑 B.寒 C.风 D.火 E.湿
有关肝脏药物代谢酶,不正确的是A.肝药酶位于肝细胞内质网B.多种药物可受同一种酶
发行人经营方面存在的风险包括:经营模式发生变化,经营业绩不稳定,过度依赖某一重要
最新回复
(
0
)