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题库 / GMATAdvanced-SC-21
Statisticians studying the health effects of uranium mining on Navajo communities have found others besides miners and millworkers to be affected; birth defects, children’s cancer, and altered birth ratios of males and females are much higher in mining than in non-mining communities.
children’s cancer, and altered birth ratios of males and females are much higher
cancer among children, and altered male and female ratios at birth are much higher
cancer among children, and altered birth ratios of males and females occur much more frequently
altered birth ratios of males and females, and children’s cancer are much higher
altered male and female ratios at birth, and cancer among children occur much more
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并列句式的逻辑关系，看清楚题目，一着急就把C选项的Occur给看漏了
我也，光顾着排除higher了
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