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【单选题】
已知某种证券收益率的标准差为0.2，当前的市场组合收益率的标准差为0.4，两者之间的相关系数为0.5，则两者之间的协方差是（ ）。A.
0.04
B.
0.16
C.
0.25
D.
1.00
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【简答题】Small as it is, the ant is as much a creature as ____ all other animals on the earth.
【单选题】关于手术当天早晨的准备的说法,下列哪项是错误的
A.
为病人测量体温、脉搏、呼吸及血压
B.
按医嘱给术前用药
C.
协助病人更换清洁衣裤、戴帽子,女病人应先梳头,取下发夹
D.
进手术室前一般不必排尿
E.
将病历及有关手术需要资料交给手术室人员
【简答题】Small as it is, the ant is as much a creature as all other animals on the earth are.
【简答题】“国际啦啦操联合会”(以下简称“ICU”)开始举办世界啦啦操锦标赛是在()年。
【单选题】Small as it is, the ant is ______ any other animal on the earth. [ ]
A.
much as a creature as
B.
as much a creature as
C.
a creature as much as
D.
as much as a creature
【单选题】关于手术当天早晨的准备的说法，下列哪项是错误的
A.
为病人测量体温、脉搏、呼吸及血压
B.
按医嘱给术前用药
C.
协助病人更换清洁衣裤、戴帽子
D.
女病人进手术室前一般不必排尿
E.
将病历及有关手术需要资料交给手术室
【单选题】Small as it is, the ant is as much a creature as ______ all other animals on earth.
A.
do
B.
have
C.
is
D.
are
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