题型:判断题 New York is famous for its skyscrapers (摩天大楼), ____ has more than 100 storeys. [ ]A. the high of which B. the highest of which C. the highest of them D. which of them 查看答案
题型:判断题 下列关于均值一方差模型的假设,错误的是( )。A.投资者根据投资组合在某一段时期内的预期报酬率和标准差来评价这一投资组合B.投资者是风险偏好者C.投资者是风险厌恶者D.投资者总希望预期报酬率越高越好 查看答案