第3题: [单项选择]Halley made his discovery ______. A. by doing experiments B. by means of his own careful observation C. by using the work of other scientists D. by chance 参考答案:C 答案解析:本题属对细节信息的深层理解推断题。其关键词是made..,discovery。Halley的discovery是基于对comets that had been observed by scientis
第13题: [单项选择]证券投资基金将众多投资者的资金集中,并委托基金管理人进行共同投资,表现了基金的( )特点。 A. 集合理财 B. 组合投资 C. 风险共担 D. 分散风险 参考答案:A 答案解析:[解析] 证券投资基金的特点包括:①集合理财、专业管理;②组合投资、分散风险:③利益共享、风险共担;④严格监管、信息透明;⑤独立托管、保障安全。其中,基金将众多投资者的资金集中起来,委托基金管理人进行