第7题: [单项选择]评价女性性发育水平的重要指标是() A. 乳房的增大 B. 月经初潮 C. 外阴色素沉着 D. 脂肪体重增加 E. 男女朦胧的爱慕心理出现 参考答案:B
第8题: [单项选择]Passage Two Questions 29 to 32 are based on the passage you have just heard.A. By a temperature controller in our brains.B. By blood vessels constricting and dilating. C. By the amount of blood passing it. D. All of the above. 参考答案:D 答案解析:[解析] Q: How does our skin get warmed or cooled