皮皮学，免费搜题
登录
搜题
【单选题】
连接核酸一级结构的键是:A.
3' ， 5'- 磷酸二酯键
B.
碱基堆积力
C.
氢键
D.
糖苷键
E.
酯键
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
反馈参考答案：
举一反三
【简答题】A Watch the interviews and circle the answers.
【简答题】What do you learn about these people? Watch the interviews and match the correct information to make true sentences.
【简答题】What is the checkpoint?Please describe the main functions of three checkpoints in cell cycle．
【简答题】Part A Watch the interviews and circle True or False. Correct the false sentences.
【简答题】Watch the interviews about “ Family t rends ” and match the
countries with the correct family trend.
【简答题】Please describe the picture.
【简答题】Watch the interviews and write the words you hear to complete the interviews. Video Track 2-1-3.wmv
【简答题】What is the cell cycle?Please describe the regulation and control of cell cycle．
【简答题】Watch the interviews by Kevin and Gian again and fill in the words you hear.
相关题目：
参考解析：
知识点：
题目纠错 0
发布
