氧由肺泡进入血液的方式是() A.易化扩散 B.主动转运 C.两者都是 D.两者都不 发布时间:2017-07-24 17:11 │ 来源:www.tikuol.com 题型:单项选择题 问题: 氧由肺泡进入血液的方式是()A.易化扩散B.主动转运C.两者都是D.两者都不是
题型:单项选择题 She didn't achieve her ______ of becoming a famous writer. [ ]A. characteristic B. ambition C. profession D. stage 查看答案
题型:单项选择题 —It's an exciting movie. I've just seen it. —_______. [ ]A. So do I B. So I have C. So have I 查看答案