只有对经济体制不断调整和创新，才能保持经济发展的活力

1. 历史课堂上，老师让同学们针对中美苏三国的经济改革发表自己的看法，下面是三个同学的回答：
2. 

阅读短文，判断正误，用“正确”或“错误”表示。

Little Jack is playing with his friend near a bank. A man stops beside them. The door

opens and a man gets out. He is wearing a mask. There's a gun in his hand. Little

Jack's friend is frightened. But Jack is not. He runs to a policeman. "Please come

quickly," Jack says. "A robber（强盗） is in that bank." The policeman looks at the bank and

laughs. "Oh, good boy！" the policeman says. "But it's Ok. That man is not a robber.

He's an actor.（演员）"

研制出世界先进的制碱工艺，打破西方国家对碱业的垄断，为我国制碱工业做出贡献的科学家是（   ）