题型:选择题 _____ in a poor family made Jack very hardworking when he was still young. A.Brought up B.Bringing upC.Having brought upD.Being brought up 查看答案
题型:单项选择题 关于河流补给的正确叙述是:()A.我国东部地区的河流主要靠雨水补给B.我国东北地区的河流以积雪融水补给为主C.湖水是河流中游最稳定而可靠的补给水源D.就世界范围而言,靠雨水补给的河流汛期都出现在夏季。 查看答案