相对压强p1与绝对压强p2的关系为:p1=p2+pA。 发布时间:2019-01-06 20:49 │ 来源:www.tikuol.com 题型:判断题 问题: 相对压强p1与绝对压强p2的关系为:p1=p2+pA。
题型:判断题 --I know not lung about the history of the telephone. Could you tell me ?--Yes. In 1876.A. when the telephone invitedB. who invented the telephoneC. when the telephone was invented 查看答案