直接写出得数．709×38≈3600÷61≈（57-16）×42=1-25+35 发布时间：2017-06-27 20:57 │ 来源：www.tikuol.com 题型：解答题 问题： 直接写出得数．709×38≈3600÷61≈（57-16）×42=1-25+35=0.1÷0.01=2.5×1.7×0.4=
题型：解答题 完形填空. Chen Yue gets 1 at 6:00 every weekday. She eats 2 at 6:15.Then she 3 English. At 6:50, she leaves home. She 4 a bus to school. She gets there 5 7:10. She doesn’t want to be 6 . Classes begin at 8:00. Chen Yue has lunch at her uncle’s 7 at around 12:00. In the 8 ,classes are over at 4:00, then she 9 games. She gets home at 5:00. In the evening she does her homework. And sometimes she 10 TV. She goes to bed at 10:00.( ) 1.A. up ( ) 2.A. dinner( ) 3.A. reads( ) 4.A. gets ( ) 5.A. in ( ) 6.A. late ( ) 7.A. family( ) 8.A. day ( ) 9.A. likes( ) 10.A. seesB. down B. lunchB. sees B. has B. at B. earlyB. bedroomB. noon B. gets B. watchesC. off C. breakfastC. likes C. takes C. of C. slow(慢的)C. classroomC. afternoon C. plays C. reads D. to D. supper D. does D. goes D. on D. quickly(快的)D. house D. morning D. works D. looks 查看答案
题型：解答题 已知平面内点M（-3，2），N（5，-4），l是经过点A（-1，-2）且与MN垂直的直线，动点P（x，y）满足PM•PN=-21．（1）求直线l的方程与动点P的轨迹Σ的方程；（2）在轨迹Σ上任取一点P，求P在直线l右下方的概率． 查看答案