中共中央***、***、中央军委主席***近在2014年两院院士大会上强调，不能总是指望依赖他人的科技成果来提高自己的科技水平，更不能作其他国家的科技附庸。要努力实现关键技术重大突破，把关键技术掌握在自己手里。你从中获得的感悟是，我国必须始终把     、     作为自己发展的根本基点（    ）

阅读材料，写一篇作文

海尔张瑞敏：“永远战战兢兢，永远如履薄冰。”

联想柳传志：“我们一直在设立一个机制，好让我们的经营者不打盹，你一打盹，对手的机会就来了。”

华为任正非：“华为总会有冬天，准备好棉衣，比不准备好，我们该如何应对华为的冬天？”

微软比尔盖茨：“我们离破产永远只有十八个月。”

戴尔电脑迈克尔戴尔：“我有的时候半夜会醒，一想起事情就害怕，但如果不这样的话，那么你很快就会被别人干掉。”

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某同学对人体呼出气体成分的变化进行了如下探究，请回答问题：

探究一：①取大小相同的两个广口瓶（250 mL），分别标号为A、B→②打开A瓶置于空气中3 min后盖严瓶口→③取一根玻璃管插入B瓶，通过玻璃管向瓶里连续地呼气数次后盖严瓶口→④分别向A、B两瓶倒入50 mL澄清的石灰水→⑤观察并记录实验结果：

探究二：重复探究一中①、②、③→④将燃着的蜡烛分别放入A、B瓶中→⑤观察并记录实验结果．

    It is said that about half of the people in China smoke. Many young boys and girls have the habit of smoking, though they are middle school students.
    More and more people have come to realize how serious this problem is. But they are never bored with it. ①Some people think it is a kind of fashion, some think it is of great fun and others think that smoking can relax themselves.
    Smoking causes many illnesses. A lot of people always cough(咳嗽)②______ ______smoking. The most serious illness caused by smoking is lung cancer. At the same time smoking is a waste of money. Beside, careless smokers may cause dangerous fires.
    It's known that smoking does harm to our health. We should get rid of(摆脱) the bad habit of smoking.