問題詳情

題組 21- 25     Chances are that the water supply where you live is disinfected by chlorine, one of the elementson the periodic table. Yet, 21 complaints about chlorine continue unabated, identifying it as ahealth and environmental risk.   Greenpeace, the environmental activist group, stands ready to indict chlorinated organicelements, alleging that they are toxic. The Federal Environmental Protection Agency re-examining thehealth hazards that are prevalent when materials 22 chlorine are processed at high temperatures,And, worldwide, nations are banning chlorine compounds that destroy the earth protective ozone layer.Harsh treatment, it would seem, for one of nature’s basic elements, a component of the table salt weuse.   As we enter a pool that is 23 with the aroma of chlorine, we don’t associate it with thereviled element now 24 for tumors, reproductive problems, arrested development, destruction ofwildlife, and sundry other ills that plague our planet.   A scientist with the Environmental Defense Fund reckons that chlorinated chemicals should be25 . “We know they will be persistent if they get into the environment,” she said. “They aresoluble, so they will build up in the fat of fish, birds, and people.”
21.
(A) transient
(B) pesky
(C) congenial
(D) phlegmatic

參考答案

答案：B
難度：困難0.285714
統計：A(3),B(2),C(0),D(0),E(0)

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