口对口人工呼吸时,先连续大口吹气两次,每次()。A.1~2s; B.2~3s; C. 发布时间:2017-10-06 03:38 │ 来源:www.tikuol.com 题型:单项选择题 问题: 口对口人工呼吸时,先连续大口吹气两次,每次()。A.1~2s;B.2~3s;C.1.5~2.5s;D.1~1.5s。
题型:单项选择题 —What do you ______ the transportation in your city? —It's bad, I think.A. think B. think with C. think of D. like 查看答案