冶铁技术中的“淬火法”在( )已开始应用，大大提高了铁器的坚韧和锋利程度。A．秦代 发布时间：2017-06-19 07:50 │ 来源：www.tikuol.com 题型：单项选择题 问题： 冶铁技术中的“淬火法”在( )已开始应用，大大提高了铁器的坚韧和锋利程度。A．秦代B．春秋C．战国D．汉代
题型：单项选择题 神经细胞在产生动作电位时，去极相的变化方向朝向下列哪种电位（）A.K+的平衡电位B.Na+与Cl-的平衡电位C.Na+的平衡电位D.K+与Cl-的平衡电位E.有机负离子A-的平衡电位 查看答案
题型：单项选择题 阅读理解。 Hi! I'm Sylvie from Toulouse in France. I'm 14 years old and I've got a twelve-year-old sister called Camille. I love going to pop music concerts and playing tennis with my friends. I'm interested in cooking and my favorite food is pizza. I don't like getting up in the mornings and I hate tidying my room! I like animals and I've got a cat called Mimi. What about you? I'd like to have pen friends from a lot of different countries. Love, Sylvie Deschamps Hello! My name is Antonio and I'm from Verona in the north of Italy. I'm 12 years old and I've got a brother and a sister. I'm interested in music, travel and pets. At weekends I love going to parties with my friends. This is my first year studying English. I'm also learning French and German. Write to me soon. I'd like to receive letters from all over the world. Best wishes, Antonio Lazaro Hello everyone! I'm Tyler Collins. I live in Florida, and I'm 18 years old I'm very much interested in meeting new people from different cultures. I'm studying languages and I plan to go to other countries to teach English within the year. I love all kinds of music, any movie, and I love books about places around the world. If you want to know more about me, just message me. Tyler Collins Hey! My name is Freyja; I'm 15 years old. I live in England and love the countryside. I go climbing a lot. I'm crazy about rock music and like the guitar. I'm in a band which I and my friends started two months ago. If you have the same interests as mine, message me and we could be friends! Freyja Murphy1. What does Sylvie like to do? A. Cook. B. Play the guitar. C. Learn French. D. Clean her room. 2. If you like climbing, who can you share your experience with? A. Tyler Collins. B. Sylvie Deschamps. C. Antonio Lazaro. D. Freyja Murphy. 3. The four young people are all interested in _____. A. teaching B. travel C. music D. reading 4. Why do the four young people write the information?A. To tell stories to others. B. To introduce their friends. C. To find new friends. D. To join a club for students. 查看答案
