2016年12月4日是第三个国家宪法日，我们普及宪法知识，增强宪法意识，弘扬宪法精神，推动宪法实施。这是因为（　）

①宪法是国家的根本大法                    ②宪法具有最高的法律地位

③宪法是普通法律的总和                    ④宪法是依法治国的根本依据

阅读下文，回答相关问题

                                                                           《出师表》（节选）
      先帝创业未半，而中道崩殂；今天下三分，益州疲敝，此诚危急存亡之秋也。然侍卫之臣，不懈于内；忠志之士，忘身于外者：盖追先帝之殊遇，欲报之于陛下也。诚宜开张圣听，以光先帝遗德，恢弘志士之气；不宜妄自菲薄，引喻失义，以塞忠谏之路也。
      宫中府中，俱为一体；陟罚臧否，不宜异同：若有作奸犯科，及为忠善者，宜付有司，论其刑赏，以昭陛下平明之治；不宜偏私，使内外异法也。

中俄原油管道途经黑龙江省和内蒙古自治区13个县市区，止于大庆。下图为中俄原油管道路径和东北部分地区等高线图。读图回答下列问题。

    What do you eat every day? Some people think about it. And some people will not make plans for their meals.

    Many people like to have fast food near their offices. This kind of food can make them fat and it is bad for their health. Even it will make them ill when they are old.

   What should a healthy person eat every day? Well, I will tell you the 'healthy eating habit(习惯)'. It comes from doctors.

     When people do a lot of work, the energy is burning(燃烧). So you need noodles, rice, milk, bread and eggs. If you don't eat them, you will feel tired. You should eat fruits and vegetables, too. There are a lot of vitamins（维生素） in them. They can make you strong. And they can give you water.