【简答题】Even if I had known her address, I ________ time to write to her. A) can not have had B) will not have had C) must not have had D) might not have had
【单选题】投资者把他的财富的30%投资于一项预期收益为0.15、方差为0.04的风险资产,70%投资于收益为6%的国库券,他的资产组合的预期收益为:( )。
【简答题】投资者把他财富的30%投资于一项预期收益为0.15、方差为0.04的风险资产,70%投资于收益为6%的国库券,他的资产组合的预期收益为( )。
【简答题】投资者把他的财富的30%投资于一项预期收益为0.15、方差为0.04的风险资产,70%投资于收益为6%的国库券,他的资产组合的预期收益为( )。
【判断题】利用心理干预用建设性的应对方式代替破坏性的应对方式,能够降低个体的应激易感性,可以达到预防应激相关反应的目的。( )
【单选题】I was ______ by a biological question in the examination, which even my teacher had never mentioned.
【单选题】在车站公共装卸场所以内,货物装车或卸车的组织工作由( )负责。
【简答题】I tried to phone her, but even as I _____ she was leaving the building. A.phoned B.would phone C.had phoned D.was phoning
【单选题】投资者把他的财富的30%投资于一项预期收益率为0.15,方差为0.04的风险资产,70%投资于收益率为6%的国库券,他的资产组合的预期收益率和标准差分别为( )