核酸基本组成单位间的连接键主要是A.肽键 B.磷酸二酯键 C.氢键 D.疏水键 E. 发布时间:2022-06-01 04:30 │ 来源:www.tikuol.com 题型:单项选择题 问题: 核酸基本组成单位间的连接键主要是A.肽键B.磷酸二酯键C.氢键D.疏水键E.二硫键
题型:单项选择题 ---I’ve got tired of being a couch potato. ---__________. How about playing basketball outside?A.It’s up to you.B.You must be joking.C.I haven’t got that. D.Let’s find some of the action. 查看答案
题型:单项选择题 怀孕晚期膈肌上抬时,可引起A.aVL导联的QRS波群呈QS型B.aVL导联的QRS波群呈rS型C.aVF导联的QRS波群呈rS型D.aVF导联的QRS波群呈Rs型E.aVF导联的Q,RS波群呈RS型 查看答案