第12题: [单项选择]Passage ThreeWhat does the speaker say about typhoons A. They can be good if they happen in summer. B. They occur only in South China sea. C. They can usually be seen around the Pacific Ocean. D. They happen in spring most often. 参考答案:C 答案解析:[听力原文] 33-35 A bit of rain and wind in summer can be nice.But bad stomps are quite different.
第15题: [单项选择]使基础代谢率增高的主要激素是() A. 糖皮质激素 B. 肾上腺素 C. 雌激素 D. 甲状腺激素 E. 甲状旁腺激素 参考答案:D 答案解析:甲状腺激素使基础代谢率增高,1mg的甲状腺素可增加产热4000kJ,甲状腺功能亢进患者的基础代谢率可增高35%左右。所以甲状腺素对能量代谢的影响最大。