0.08×____ =0.8           8.18÷____ =0.0818

    We sometimes call the lion “the king of the jungle (丛林)"because it is stronger and more dangerous than other animals. It can run faster than many animals and it can hunt (捕猎) the best. It is the highest animal in the 1 food chain (食物链).
    In the sea, the shark is one of the animals at the 2of the food chain. It can swim faster than most other sea animals, and it can use its big teeth to eat them.
    What is at the top of the world's food chain? 3 are! We are not the biggest or fastest, but we are the 4  We could not run faster than cheetahs (猎豹),  so we 5 cars and now we can move the fastest. We could not 6 better than lions, so we invented guns (枪). Now we can hunt the best.
    People's inventions are clever, but they can be dangerous, too. For example, people invented7, and now they make the air and rivers dirty. This can make 8 changes. Dirty rivers kill fish.  Then bears cannot eat the fish and the bears die. If we kill one part of the food chain, 9 also die. Remember that we are a part of the food chain, so we are in danger too! If we protect animals, we are protecting 10! We should and we could do something for the world!

中国国民党某大会宣言提出：“民族主义，一为中国民族自求解放；二为中国境内各民族一律平等。民权主义指民权为一般平民所共有，凡真正反对帝国主义之个人及团体，均得享有一切自由及权利……”在该理论的推动下

① $y=2\sin \frac{1}{2}x+\cos \frac{1}{2}x$ 可化为y=Acos（ωx+φ）；

②y=Acos（ωx+φ）是周期函数；

③ $y=2\sin \frac{1}{2}x+\cos \frac{1}{2}x$ 是周期函数，

其中为小前提的是（   ）

焦点坐标（﹣5，0），实轴长为6，求双曲线标准方程并求此双曲线渐近线方程及离心率．