题目: 已知条件p:-2<x<10;条件q:(x-1)2-m2≤0(m>0),若p是q的充分不必要条件,则m的取值范围是( )A.[21,+∞)B.[9,+∞)C.[19,+∞)D.(0,+∞) 答案: 条件p:-2<x<10;条件q:(x-1)2-m2≤0(m>0),∴1-m≤x≤1+m,∵p是q的充分不必要条件,∴1-m<-2,1+m>10,∴m>9,故选B.
题型:选择题 The news of enemy's defeat quickly________ round the town. [ ]A. told B. said C. circulated D. spreaded 查看答案
题型:填空题 用adopt, adjust 或adapt 完成句子。 1) All his suggestions have been____. 2) This TV series is____from a famous novel. 3)I must____my watch, as it's fast. 查看答案