成人心肺复苏进行胸外按压的频率是() A.80次/分 B.100次/分 C.120次 发布时间:2017-08-23 21:12 │ 来源:www.tikuol.com 题型:单项选择题 问题: 成人心肺复苏进行胸外按压的频率是()A.80次/分B.100次/分C.120次/分D.140次/分
题型:单项选择题 There are many interesting books_________ , but I'm at a loss which to borrow.A.to chooseB.for choosingC.to be chosenD.to choose from 查看答案