在价格改革“闯关”受挫后,中国的改革和经济建设面临着严峻的形势。在此形势下,党中央总揽全局,作出了治理经济环境、整顿经济秩序的重大决策。
A. 对
B. 错
Complete the sentences with the correct words from the word bank.representsceremonycollect participatevillage1. I am from a small __________________. Its population was only 500.2. To get a good grade in this class, you have to __________________ actively. You can't be silent.3. The color green often __________________ nature, like green trees and grass.4. Maria and her husband __________________ stamps. They have stamps from every country in the world.5. A wedding is usually a beautiful __________________.
我国哪位科学家把“gene”一次翻译为“基因”,向中国生物学家介绍遗传学的研究进展。
A. 袁隆平
B. 谈家桢
C. 屠呦呦
D. 李振声
金鱼草F1花色表现为双亲性状的中间型,这样的显性类型是( )
A. 完全显性
B. 不完全显性
C. 共显性
D. 镶嵌显性