【文章內(nèi)容簡介】
arts of the body in the diagram. (三) 分層提高 Look at the following statements and decide which part of the body is described. This an weighs about a kilo and is made up of two sides. It is like a super puter that processes information. This an is like a bag which reeives everything you digests your food and sends vitamins and minerals into the blood. This an beats at regular intervals