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问题 单项选择题

肺炎球菌肺炎抗生素治疗停药指征是

A．热退停药

B．热退3天

C．热退7天

D．临床症状、体征消失

E．胸片炎变消退

答案

参考答案：B

解析：肺炎球菌肺炎抗菌药物疗程一般为5～7天，或在退热后继续用药3天。

多项选择题

关于证券投资组合理论的以下表述中，不正确的有（）

A.证券投资组合能消除大部分系统风险

B.证券投资组合的总规模越大，承担的风险越大

C.最小方差组合是所有组合中风险最小的组合，所以报酬最大

D.一般情况下，随着更多的证券加入到投资组合中，整体风险降低的速度会越来越慢
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单项选择题

Information is no good to you if you can’t （） it．The loction dimension of information means having access to information no matter where you are．Ideally, in other words，your location or the information’s location should not matter．You should be able toaccess information in a hotel room，at home，in the student center of your campus，at work，onthe spur of the moment while walking down the street，or even while traveling on an airplane．This location dimension is closely related to （）and wireless computing (and also ubiquitous computing)．

To keep certain information private and secure while providing remote access for employees，many businesses are creating intranets．An intranet is an （） organizational internet that is guarded against outside access by a special （） feature called a firewall (which can be software，hardware，or a combination of the two)．So，if your organization has an intranet and you want to access information on it while away from the office，all you need is Web access and the password that will allow you （） the firewall．

So，if your organization has an intranet and you want to access information on it while away from the office，all you need is Web access and the password that will allow you （） the firewall．

A．pass

B．through

C．across

D．cross
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