【简答题】阅读理解。 What is blood? Blood is a thick, red fluid which carries oxygen, water and food to all parts of the body. It keeps the body at the right temperature (温度) and protects it from disease. If you los...
【简答题】阅读理解 Part of David's heart muscle grew thick and stiff ,keeping the flow of blood. The disease David had lived with for 17 years was slowly keeping his heart from beating. The night Flora bent forward...