题目

    Fatty food, increased use of automobiles and a drop-off in cycling all have contributed to some side effects in China. The   36   government figures show roughly one fifth of the population is   37      overweight or obese.     He Yifan weighed 157 kilograms when he arrived at the weight loss clinic two months ago. He says he lived an indulgent(纵容的) life at university and packed on the weight. Then he   38   ; he says it’s time to get rid of the kilos and fight off obesity.   “My friends made   39   about me for being fat sometimes,” he said 等差数列的前项和为，那么值的是（    ） A．130               B．65            C．70              D．以上都不对