第9题: [简答题]It has been demonstrated that many times that it is often this idea that is causing their problems rather than any lack of skill in mathematics. 参考答案: 答案解析:实践证明，许多情况下，正是人们对数学的这种错误看法才使得他们在数学学习时遇到许多困难，而不是他们的学习能力或技巧方面比别人差。
第10题: [单项选择]女性青春期开始的重要标志是（） A. 音调变高 B. 乳房丰满 C. 月经初潮 D. 阴毛出现 E. 骨盆变宽 参考答案:C
第24题: [单项选择]Questions 22 to 25 are based on the conversation you have just heard. A. How to measure metals. B. A standard unit for measuring weight. C. The price of precious metals. D. How to use the metric system. 参考答案:B 答案解析:[听力原文] 22-25 W: Dr. Thomas This is Kate Bradley from the daily news. I’d like to ask you some qu
第28题: [单项选择]Applauding is specifically mentioned as an example of ________. A. communication by sound B. gesture and mimicry C. communication by touch D. a simple system of visual communication 参考答案:A 答案解析:根据为第三段中的“Whistling to someone，applauding in a theater, and other forms of communication by sound rel
第31题: [单项选择]国内安全保卫，是对( )的侦查和防范工作。 A. 违法行为 B. 危害国家安全犯罪 C. 犯罪行为 D. 危害公共安全罪 参考答案:B 答案解析:[解析] 国内安全保卫，即对危害国家安全犯罪的侦查和防范工作。国内安全保卫工作是在党和政府的领导下，紧紧依靠群众，以秘密的侦查手段和公开的斗争形式，防范、发现和打击一切敌对势力、敌对分子的各种阴谋破坏
