皮皮学，免费搜题
登录
搜题
【单选题】
以下对镰刀状红细胞贫血症叙述正确的是A.
血红蛋白的β链第6位由谷氨酸残基变成丝氨酸残基
B.
血红蛋白的β链第6位由谷氨酸残基变成氨酸残基
C.
血红蛋白的β链第6位由谷氨酸残基变成甘氨酸残基
D.
血红蛋白的β链第6位由谷氨酸残基变成缬氨酸残基
E.
血红蛋白的β链第6位由谷氨酸残基变成苯丙氨酸残基
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
【单选题】听力原文： When a person needs information on almost any topic, where does he or she look for it? The most likely place is an encyclopedia. Today an encyclopedia is a set of books with articles and picture...
A.
How to use an encyclopedia.
B.
Encyclopedias in the future.
C.
The function of a computer network.
D.
Where to look for up-to-date information.
【简答题】A．Return early the next day. B．Photocopy the articles he needs. C．Ask Professor Gills for a copy of the articles. D．Wait until the girl's finished with her articles.
【简答题】传统的社会文化准则要求女孩承担( );男孩承担( )。
【简答题】A．Return early the next day. B．Photocopy the articles he needs. C．Ask professor Grand for a copy of the articles, D．Wait until the girl has finished with her articles,
【简答题】A．Return early the next day. B．Photocopy the articles he needs. C．Ask professor Grand for a copy of the articles. D．Wait until the girl has finished with her articles.
【简答题】A．Return early the next day. B．Photocopy the articles he needs. C．Ask professor Grand for a copy of the articles, D．Wait until the girl has finished with her articles,
【简答题】取一金属杆，使其一端与沸水接触，另一端与冰接触，当沸水和冰的温度维持不变时，杆的各部分虽然温度不同，但将不随时间改变，这是金属杆是否处于平衡态？为什么？
相关题目：
参考解析：
知识点：
题目纠错 0
发布
