题型：问答题 简答题 根据上下文完成下面对话。A: Hello, Tom. B: Hello, Jimmy. A: 1_____________. B: I had a great time in my vacation. A: 2_____________. B: I went to the beach. A: 3_____________. B: Yes, I took many pictures. A: 4_____________. B: I went surfing. A: That sounds interesting. 5_____________. B: I like it very much. It's my favorite sport.a. How was your vacation? b. Where did you go? c. What else did you do?d. Did you take any pictures?e. Did you see any sharks? f. How did you like it? 查看答案
题型：问答题 简答题 2013年2月15日当地时间9点，一颗陨石坠落在俄罗斯车里雅宾斯克（61°E，55°N），引起世人关注。据材料回答下列问题。据考证每年撞向地球的小天体质量为400万吨，但到达地表的数量很少，主要是因为地球宇宙环境（）A.地球的体积质量较小，不能俘获小天体B.地球自转周期适中，有效避开小天体撞击C.日地距离适中，太阳俘获了大多数小天体D.大气层起到了对地球保护作用 查看答案