题目内容

What can we infer about Eddie?

A. He had some physical problems.
B. He was inspiring.
C. He wasn't a born skier.
D. He was strong-willed.

查看答案
更多问题

What did Allen mean when he said “everyone can be Eddie”?

A. Everyone can go to the Olympics.
B. Everyone has limitations in life.
C. Everyone has a chance to realize their dream.
D. Everyone can turn their life story into a movie.

否定之否定规律揭示事物发展要经过两次否定,三个阶段才能得到充分的发展。其中“三个阶段”是指_________、___________和______________。

【单选题】在供体细胞和受体细胞直接接触后,质粒从供体细胞向受体细胞转移的过程叫做( )。

A. 接合
B. 转化
C. 转导
D. 转染

【单选题】优良菌株已经开始退化后,()。

A. 只能放弃
B. 可以分离筛选出没有退化的个体,然后进行繁殖、利用
C. 必须丢弃
D. 只能这样利用

答案查题题库