【单选题】已知A证券的预期报酬率为10%,标准差是12%,B证券的预期报酬率为18%,标准差是20%,两资产构成的投资组合中A、B的投资比例分别为60%和40%。证券A、B报酬率的相关系数为0.6,则A、B两资产投资组合的标准差为( )。
【单选题】在Dreamweaver CC中,可以较好地呈现Javascript脚本执行效果的视图是( )。
【多选题】Listen to the passage. I can never guess the weather right (1). If I wear a warm shirt (2), the weather’s hot (3). If I wear cool clothes (4), there’s a cold wind (5). Which sentences/clauses are risi...
A.
I can never guess the weather right (1)
C.
If I wear cool clothes (4)
D.
there’s a cold wind (5).
【单选题】在Dreamweaver CC中,可以较好地呈现脚本执行效果的视图是( )。
【单选题】—Listen, the wind is blowing strongly. —Yes, tell Tom______the window. [ ]
【单选题】— Tell me where you live, please. — I live _____. [ ]
A.
in 123, East Wind Street
B.
at 123, East Wind Street
C.
in East Wind Street, 123
D.
at East Wind Street, 123