【单选题】He ___ his leg when he __ in a football match against another school.
B.
was breaking, was playing
【判断题】月夜练枪,象征着沙子龙的妥协退让与国术即将消逝。()
【简答题】我很抱歉地通知大家明日的课程已经取消由于暴风雪。
【单选题】After the five ,very little of the house _______standing .
【简答题】The White House is open to the public ________. A) on weekdays only B) five days a week C) every other day D) on weekends only
【单选题】He had a serious car (accident) last week and (broke) his left leg because he got (drunk) and drove too (fastly).
【简答题】解不等式:x(x-3)<3x(x+2)-2x 2 -3
【判断题】极限误差就是最大的抽样误差,因此,总体指标必然落在样本指标和极限误差共同构成的区间之内。()