第18题: [单项选择]下列激素中可促进远曲小管和集合管重吸收Na+的是______。 A. 肾素 B. 血管紧张素 C. 心钠素 D. 醛固酮 E. 抗利尿激素 参考答案:D
第19题: [单项选择]What helped Betty most in learning Spanish A. The language laboratory. B. Travel. C. Studying in high school. D. Going to movie and watching -TV. 参考答案:B 答案解析:[听力原文] 15-17
Betty can speak Spanish and French. And what helped her most in learning those lang