多项选择题：下列情况中，投资组合是无效的有( )。 A．较高的期望报酬率和较低的标准差 B．相

题型：填空题

    One Sunday morning,a man was sitting in the doctor's office. He was telling the doctor about his
  1   .
    "I like football, Doctor." He said, " Please help me. My life was very good before I became   2 in
football and it is getting worse and worse now. I can't even forget it in my sleep. When I close my    3 ,
I'm out there in the football field and running after a flying ball. When I wake up, I'm more     4 than I
was before I went to bed. What shall I do?  "
     The doctor said,  " First, you should do your best not to dream about football. Before you go to
sleep, try to think about something else. Try to think that you are at a party or you are having a trip."
     " Are you crazy ?"  the man shouted,  "Then I'll   5 the ball !"

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题型：阅读理解与欣赏

阅读下面一篇文章，完成1~3题。

哀溺文

　　永^①之氓^②咸善游。一日，水暴甚，有五六氓，乘小船绝湘水。中济，船破，皆游。其一氓尽力而不能寻常^③。其侣曰：“汝善游最也，今何后为？”曰：“吾腰千钱，重，是以后。”曰：“何不去之！”不应，摇其首。有顷，益怠。已济者立岸上，呼且号曰：“汝愚之甚，蔽之甚，身且死，何以货为？”又摇其首。遂溺死。|

　　吾哀之。且若是，得不有大货^④之溺大氓^⑤者乎？

[注释]永：唐代地名，今永州。 ②氓：民，百姓。 ③寻常：古代计量单位，八尺为寻，十六尺为常，这里指平时。 ④大货：非常多的财物。 ⑤大氓：有钱有势的人。

1．解释句中加粗的词。

①永之氓咸善游

咸：__________________________

②中济，船破，皆游

济：__________________________

③有顷，益怠

怠：__________________________

④又摇其首。遂溺死

遂：__________________________

2．翻译下列句子。

①其一氓尽力而不能寻常。

________________________________________________________________

②何不去之！

________________________________________________________________

③汝愚之甚，蔽之甚！

________________________________________________________________

3．文中所写落水之人为何被溺死？他告诉我们什么道理?

________________________________________________________________

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题型：填空题

中国餐饮业21世纪的发展方向是社会化、科学化、______。

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题型：单项选择题

下面哪一项可能不属于业务应用与权限平台的集成范围（）

A、统一认证与身份管理

B、权限分配

C、业务组织

D、权限定义

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题型：单项选择题

数字温度表可将测量信号转换成（）信号，再将其线性地转换为数字信号，以实现数字显示。

A、直流电压

B、直流电流

C、电阻

D、差压

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下列情况中，投资组合是无效的有( )。 A．较高的期望报酬率和较低的标准差 B．相

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