问题
单项选择题
Industry ______ only ten percent of the smog in Los Angeles.
A. calls on
B. mounts to
C. appeals to
D. accounts for
答案
参考答案:D
解析:D项account for“占,说明”符合题意。其他三项:call on访问;amount to合计,共计;appeal to呼吁。