问题
单项选择题
地震是地球()物质运动的结果。
A、外部
B、地壳
C、地幔
D、内部
答案
参考答案:D
地震是地球()物质运动的结果。
A、外部
B、地壳
C、地幔
D、内部
参考答案:D
An analyst does research about the portfolio's standard deviation of return. A portfolio consisting of two securities has the following characteristics:
Security | Portfolio Weight | Standard Deviation |
1 | 35% | 16% |
2 | 65% | 19% |
A. 12.22%
B. 14.78%
C. 14.93%