下列有关基因工程技术的叙述，正确的是(    )

用数字和化学符号表示下列意义：

下列对化学平衡移动的分析中，不正确的是                    （     ）
①已达平衡的反应C（s）+H₂O（g）CO（g）+H₂（g），当增加反应物物质的量时，平衡一定向正反应方向移动
②已达平衡的反应N₂（g）+3H₂（g）2NH₃（g），当增大N₂的浓度时，平衡向正反应方向移动，N₂的转化率一定升高
③有气体参加的反应平衡时，若减小反应器容积时，平衡一定向气体体积增大的方向移动
④有气体参加的反应达平衡时，在恒压反应器中充入稀有气体，平衡一定不移动

如今许多欧洲人正逐渐从“我是法国人”或“我是意大利人”转变为“我是欧洲人”。能够反映这一观念转变的图标是（    ）

    Charlie was about to climb into bed when he found there was a light on in his garden shed(棚). Then he noticed some people who were busy stealing his things.
    He call the police right away. The policeman asked, “Are there any intruders(闯入者)in your house?” Charlie replied “no” and explained what was happening.
    The policeman said, “All patrol cars(巡逻车) have gone out, and a policeman will go to your house when one is free.”
    Charlie hung up, waited 30 seconds, and then called the police again. “Hello, I just called a short while ago because there were people stealing things from my shed. I want to let you know that they're not a problem anymore because I've just shot every one of them.”
    Charlie then hung up the phone. In five minutes, three patrol cars, nearly twenty policeman and an ambulance arrived at his house. Of course, the police caught the thieves.
    One policeman said, “I thought you said that you shot every one of them!”
    Charlie replied, “I thought you said there were no patrol cars free!”