单选题
One variety of partially biodegradable plastic beverage container is manufactured from small bits of plastic bound together by a degradable bonding agent such as cornstarch. Since only the bonding agent degrades, leaving the small bits of plastic, no less plastic refuse per container is produced when such containers are discarded than when comparable nonbiodegradable containers are discarded. Which of the following, if true, most strengthens the argument above?
【正确答案】
B
【答案解析】[解析] 本题难点在于读题,注意段落中since后面的“only”以及“no less than”为“不少于”的意思。如果制造partially biodegradable plastic beverage产生的塑料并不少于comparable nonbiodegradable containers丢弃时产生的塑料,正如(B)所说,那么结论“no less plastic refuse... are discarded”,可以得到很好地支持,所以(B)正确;(A)指出了两者的共性,但与“能否产生塑料”无关;(C)与“refuse”无关;(D)颠倒了两者关系,起到了反对作用;(E)与(A)一样,指出了两者共性,但并不能支持为什么有上述结论,因此(E)不正确。 注:biodegradable adj. 可被生物分解的,可由细菌分解降落的 refuse n. 废物,废料,垃圾