基因
参考答案:
基因是承载具体遗传讯息,通常编码一个蛋白质,或有功能的非编码RNA,或实现特殊调控功能的一段核酸序列,在绝大部分已知生物中为一段DNA序列。
我国《公务员法》规定:公务员职位类别按照公务员职位的性质、特点和管理需要,划分为哪些类别( )
A.综合管理类
B.行政执法类
C.立法研究类
D.专业技术类
E.调研咨询类
选择与画线部分意思相同或相近的选项。
1. I am glad to see you.
A. happy
B. sad
C. old
2. The girl can run very fast.
A. quickly
B. slowly
C. quietly
3. I bought an ice cream in the shop.
A. river
B. store
C. home
4. Mr. Wang will arrive in England in two days.
A. put on
B. turn off
C. get to
5. He did the work all by himself.
A. already
B. together
C. alone