为排除缸内的空气,对要求不高的液压缸,可将油管设在缸体的最高处。 发布时间:2017-06-22 19:15 │ 来源:www.tikuol.com 题型:判断题 问题: 为排除缸内的空气,对要求不高的液压缸,可将油管设在缸体的最高处。
题型:判断题 Part 2 Questions 9-13 ·Listen to the following description of five people and decide what kind of person each is. ·For questions 9-13, choose the words of the personality traits from the list A-E ·Use the letters only once. There is one extra letter which you do not need to use. 9. Speaker 1: ______ 10. Speaker 2: ______ 11. Speaker 3: ______ 12. Speaker 4: ______ 13. Speaker 5: ______A. stubbornB. creativeC. loyalD. honestE. patientF. energetic 查看答案
题型:判断题 已知矩形ABCD,AB=4,BC=3,沿对角线AC将矩形ABCD折成一个空间四边形,则空间四边形ABCD的外接球的体积为( )A.1256πB.1254πC.1253πD.12512π 查看答案