公安执法监督，是指公民和社会组织对人民警察依法履行职责、行使职权的活动和遵守纪律的情况所实施的监督。 ( )
参考答案：错
一件上衣打七折后的售价是140元，老板说：“如果这件上衣对折就不赚也不亏”．这件上衣成本是多少元？
He had the horse _____ all the way. As a result, he fell off the horse and had his arm _____. [ ]
A. running; break
B. running; broken
C. run; breaking
D. run; broken
