It is better for the environment if as much of all packaging as possible is made from materials that are biodegradable in landfills. Therefore, it is always a change for the worse to replace packaging made from paper or cardboard with packaging made from plastics that are not biodegradable in landfills.
Which of the following, if true, constitutes the strongest objection to the argument above?
(A) The paper and cardboard used in packaging are usually not biodegradable in landfills.
(B) Some plastic used in packaging is biodegradable in landfills.
(C) In many landfills, a significant proportion of space is taken up by materials other than discarded packaging materials.
(D) It is impossible to avoid entirely the use of packaging materials that are not biodegradable in landfills.
(E) Sometimes, in packaging an item, plastics that are not biodegradable in landfills are combined with cardboard.
答案是A,我觉得A与B基本没有区别,如果非说有些不同,那应该是在范畴上,一个是usually,一个是some,大家是这样理解而得出答案的吗? 我倒觉得B更好,因为plastic是biodegradable,这样替换之后不会变得更差,否则即使一些paper and cardboard不是bidegradable, 替换成plastic后,也不一定会变得更好,岂不是多此一举!
Which of the following, if true, is the most logical completion of the argument below?
The tax system of the Republic of Grootland encourages borrowing by granting its taxpayers tax relief for interest paid on loans. The system also discourages saving by taxing any interest earned on savings. Nevertheless, it is clear that Grootland’s tax system does not consistently favor borrowing over saving, for if it did, there would be no______
(A) tax relief in Grootland for those portions of a taxpayer’s income, if any, that are set aside to increase that taxpayer’s total savings
(B) tax relief in Grootland for the processing fees that taxpayers pay to lending institutions when obtaining certain kinds of loans
(C) tax relief in Grootland for interest that taxpayers are charged on the unpaid balance in credit card accounts
(D) taxes due in Grootland on the cash value of gifts received by taxpayers from banks trying to encourage people to open savings accounts
(E) taxes due in Grootland on the amount that a taxpayer has invested in interest-bearing savings accounts
答案是A,恕我捉劣,没读明白题要说明什么经济道理。
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