Sentence Correction
试题详情
题目：
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.
选项:
A、children’s cancer, and altered birth ratios of males and females are much higher
B、cancer among children, and altered male and female ratios at birth are much higher
C、cancer among children, and altered birth ratios of males and females occur much more frequently
D、altered birth ratios of males and females, and children’s cancer are much higher
E、altered male and female ratios at birth, and cancer among children occur much more
答案:
C
