問題詳情

21 至 25 題為題組 Hair usually gets greasy when it has not been washed because it soaks up oil—hence the need forshampoo! 21 this oil-absorbing feature might not always be so great for our hygiene, it can be greatfor the environment.Matter of Trust, a nonprofit organization, has an innovative solution for removing the large-scale oilspill in the Gulf of Mexico in 2010, using the ultimate renewable 22 : human hair, of which there is anunlimited supply. Since its founding in 1998, Matter of Trust has collected donations of human hair andanimal fur to 23 the thousands of oil spills that happen each year. The hair and fur are made into matsand brooms and sent to 24 waters to absorb the oil.Across the United States each day, 300,000 pounds of hair and fur are cut. Matter of Trust is helpingorganize the collection of this 25 hair and fur through thousands of salons, pet groomers, and ranchers.Individuals can also speak to local hair stylists and pet groomers about sending in leftover hair and fur.
21.
(A) For
(B) While
(C) In case
(D) As long as

參考答案

答案：B
難度：適中0.5
統計：A(0),B(0),C(0),D(0),E(0)

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