题目

生活中处处有化学，下列有关说法正确的是（ ） A . 糖类、蛋白质、脂肪都是人类需要的营养物质 B . 饮用矿泉水瓶、一次性水杯的主要成分是聚氯乙烯 C . 冬天用纯甘油涂抹在手和面部可以防止皮肤干燥和开裂 D . 大米富含淀粉，大米煮成粥后淀粉变成了葡萄糖 答案：A18．请听第六段对话，回答第13到第15三个小题．13．What does Peter most probably do in China？ A．He learns to cook．B．He teaches French    C．He studies in a school14．What does Peter think of Chinese？A．He likes it    B．He's good it    C．He thinks it easy．15．What does Peter do on weekends？A．He stays at home with his friends．B．He travels with Susan in Beijing．C．He chats with friends on the internet．