1. Conservationists have established land reserves to preserve the last
remaining habitat for certain species whose survival depends on the existence
of such habitat. A grove of trees in Mexico that provide habitat for North
American monarch butterflies in winter is a typical example of such a land
reserve. If global warming occurs as predicted, however, the temperature bands
within which various types of vegetation can grow will shift into regions that
are currently cooler.
If the statement above are true, they provide the most support for which one
of the following?
Ans: If global warming occurs as predicted, the conservation land reserves
will cease to serve their purpose.
2. Each December 31 in Country Q, a tally is made of the country's total
available coal supplies--that is, the total amount of coal that has been mined
throughout the country but not consumed. In 1991 that amount was
considerrably lower than it had been in 1990. Furthermore, Country Q has not
imported or exported coal since 1970.
If the statements above are true, which one of the following must also be
true on the basis of them?
Ans: In Country Q, the amount of coal consumed in 1991 was greater than the
amount of ocal in 1991.
3. Several cosmetics firms are committed to the active development, validation,
and adoption of new product-safety tests that use cultures of human cells.
They argue that the new tests serve the reduce the need for tests on live
animals
The statements above most strongly support which one of the following
conclusion?
Ans: Managers of the cosmetics firms believe that it is better for their firms
not to perform tests on love animals if there is an acceptable alternative
way of determining product safety.
我想問的是：
Q1:為什麼全球暖化後保護區的作用就消失了？
Q2：煤消耗量怎麼可能大於產量？
Q3：為何這兩個選項不行
1. Financial consultants for the cosmetics firms believe that using human
cell cultures rather than live animals to thest product safety will
cost the firm less in actual product-development cost.
2. Researchers in the cosmetics firms believe that fewer tests of products
will be needed if cell cultures rather than live animals are used.
謝謝
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