比较资本资产定价模型(CAPM)和套利定价模型(APT)对风险来源的定义，以下说法中正确的是( )。
A．资本资产定价模型(CAPM)的定义是具体的
B．资本资产定价模型(CAPM)的定义是抽象的
C．套利定价模型(APT)的定义是具体的
D．套利定价模型(APT)的定义是抽象的
参考答案：A,C
解析： 资本资产定价模型(CAPM)用资产未来收益率的方差或标准差来衡量风险，套利定价模型(APT)用贝塔值来衡量风险。两者对风险的定义均是具体的。故选AC。
“Get up, get up, Jim. It’s time to get up!” mother said while she was 1 me. I opened my eyes and looked at the clock. “Oh, dear! It’s a quarter to eight already. I’ll be late for school again,” I thought. I 2 out of the bed, washed my face, and then hurried to the bus stop without breakfast. As soon as I 3 the bus, it started running. “I’m sure I can get to school in time,” I said to myself. Suddenly the bus stopped. The bus driver got off the bus, then got on the bus again and said, “I’m sorry, ladies and gentlemen. There’s 4 wrong with the bus. Please get off the bus and wait for another one. ” “I couldn’t wait. The school is not 5 . I’d better run to school,” I thought, and then I began to run. But before I got to school, it began to 6 heavily. When I 7 the classroom, I was wet shivering (发抖) with cold. The physics teacher had already begun his lesson. It was Mr Smith. He was about fifty years old. All the students were a little afraid of him and—so was I. I liked neither him nor his physics lessons. I hesitated (犹豫) for a moment, and then I opened the door. “I’m very sorry, Mr Smith. I'm late again,” I said with a red face. “It’s you again, Jim,” Mr Smith said 8 , “I’ve told you not to be late, but you... ” He suddenly stopped and looked at my wet clothes. He turned to 9 and said, “I’m very sorry, my boys and girls,” With these words he quickly took off his own jacket and handed it to me. “Now, take off your wet coat and put this one on, or you'll catch cold. ” he said kindly. I went to my seat with Mr Smith’s jacket on. It was a bit larger for me but I felt very 10 in it. I found, for the first time, physics was so interesting and how well I could understand it!
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