According to the passage, which of the following statements about sulfur dioxide and nitrogen oxide outputs is true?
A. Older production technologies cannot be adapted so as to reduce production of these outputs as waste products. (adapt(原文用的是adopt)是关键,accomodate, adjust。偶是这样理解的:新facilities不能或因代价太大不愿意adapt older technologies,目的呢,还是一个,减少污染,不管是被迫的,还是主动地;而对老facilites 用older technologies却没有办法,因为在它出台的时候没有什么regulations去限制它。)
B. Under the most recent environmental regulations, industrial plants are no longer permitted to produce these outputs. (this is not true, there are plants still doing so...)
C. Although these outputs are environmentally hazardous, some plants still generate them as waste products despite the high compliance costs they impose. (this is not true, please refer below)
.......for
example, whereas new facilities
generally avoid processes that
would create such waste ......
why avoid? because it is so costly......generally, no companies are willing to pay for producing toxins, right?
D. Many older plants have developed innovative technological processes that reduce the amounts of these outputs generated as waste products.
E. Since the production processes that generate these outputs are less costly than alternative processes, these less expensive processes are sometimes adopted
my 2 cents, 请指点!
[此贴子已经被作者于2005-6-6 2:24:16编辑过] |