皮皮学,免费搜题
登录
logo - 刷刷题
搜题
【单选题】
Consider a portfolio exhibiting an expected return of 20% in an economy in which the riskless interest rate is 8%, the expected return to the market portfolio is 0.13, and the standard deviation of the return to the market portfolio is 0.25. Assuming this portfolio is efficient, what is the standard deviation of its return?
A.
0.12
B.
0.4
C.
0.6
D.
0.8
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
微信内点击右上角“…”即可分享
反馈
参考答案:
举一反三
【简答题】A.He didn't expect to buy a lot. B.He had only one bag of groceries. C.The supermarket is just down the block. D.He thought he'd get a ride with the Smiths.
【简答题】谢某,男,72岁,患大叶性肺炎,高热昏迷10天,10天内给予大量广谱抗生素抗感染治疗。近日护士做口腔护理时发现其口腔黏膜破渍,创面上附着白色膜状物,拭去附着物可见创面轻微出血。最可能的感染菌是A、大肠杆菌 B、绿脓杆菌 C、白色念珠菌 D、溶血性链球菌 E、金黄色葡萄球菌 该病人最可能发生的是A、原位菌群一度失调 B、原位菌群二度失调 C、移位菌群失调 D、菌替症 E、无菌群失调 关于该致病菌...
【简答题】完形填空。 A Frenchman went to visit New York. He didn't know English. When he 1 New York, he 2 a bus to a hotel. It was Sunday. The Frenchman went out for a walk. As he went 3 the street, he suddenly thou...
【简答题】谢某,男,72岁,患大叶性肺炎,高热昏迷10天,10天内给予大量广谱抗生素抗感染治疗。近日护士做口腔护理时发现其口腔黏膜破溃,创面上附着白色膜状物,拭去附着物可见创面轻微出血。最可能的感染菌是A、大肠杆菌 B、绿脓杆菌 C、白色念珠菌 D、溶血性链球菌 E、金黄色葡萄球菌 该病人最可能发生的是A、原位菌群一度失调 B、原位菌群二度失调 C、移位菌群失调 D、菌替症 E、无菌群失调 关于该致病菌...
【单选题】I______he________for what he had done. But he didn't.
A.
thought; would apologize
B.
thought; apologize
C.
thought; apologized
D.
had thought; would have apologize
【多选题】新生儿院内感染的特点()
A.
真菌是引起NICU院内感染的第三种常见病菌
B.
革兰阴性杆菌中假单胞菌属是院内感染的常见细菌
C.
常见病原体的种类:细菌、真菌、病毒
D.
新生儿院内感染的常见部位为皮肤、口腔、呼吸道、消化道、血液
E.
最常见的病毒是巨细胞病毒
【单选题】______, everything would have been all right.
A.
He had been here
B.
Been here he had
C.
Here he had been
D.
Had he been here
【判断题】我们可以从壁画中的人物形象和使用器具推断出壁画创作的年代。()
A.
正确
B.
错误
【简答题】A.He didn't expect to buy a lot. B.He had only one bag of groceries. C.The supermarket is just down the block. D.He thought he'd get a ride with the Kramers.
【单选题】关于SSI的细菌学下列说法不正确的是:( )
A.
最常见的病原菌是葡萄球菌(金黄色葡萄球菌和凝固酶阴性葡萄球菌),其次是肠道杆菌科细菌(大肠杆菌、肠杆菌属、克雷伯菌属等)。
B.
SSI的病原菌可以是内源性或外源性的,大多数是内源性的,即来自患者本身的皮肤、黏膜及空腔脏器内的细菌。
C.
手术切开胃肠道、胆道、泌尿道、女性生殖道时,典型的SSI致病菌是革兰阳性菌。
D.
在任何部位,手术切口感染大多由葡萄球菌引起。
相关题目:
参考解析:
知识点:
题目纠错 0
发布
创建自己的小题库 - 刷刷题