在平面直角坐标系中，三角形的三个顶点分别是A（2，2），B（4，2），C（4，8

发布时间：2017-05-18 01:23 │ 来源：www.tikuol.com

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问题：

在平面直角坐标系中，三角形的三个顶点分别是A（2，2），B（4，2），C（4，8），以B为位似中心，按相似比为2：1将△ABC缩小为△A′B′C′，则点A′的坐标为______，点C′的坐标为______．

考点：位似

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内河运输

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下列哪种药物在治疗量不可能降低窦性心率（）

A.奎尼丁

B.胺碘酮

C.美多心安

D.普罗帕酮

E.维拉帕米

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“Where is the bus?” I asked myself. I was going to be late and the manager wasn’t going to be pleased. Thank God, here it is! The bus__1__round the corner and I got on. Ten minutes later I was walking into the__2__ where I work. “Twenty-five past nine. I__3__ the manager doesn’t notice.” But no __4__luck! “Smith!” shouted the manager. “Late again. What’s your__5__ this time?”. “ I’m afraid the bus was late, Mr. Brown.” “Get up earlier tomorrow! Anyway, go to your__6__ at the counter, we’ll be opening in a few minutes.”
My first customer was a pretty girl wearing a red dress. Behind her was a young man of about 25. He seemed very__7__, and every few seconds he looked __8__the main entrance. The girl__9__about opening a bank account. I gave her the necessary __10__and she walked out. __11__, I noticed a tall man by the door, carrying something__12__with brown paper. Turning to my next customer, I was terrified to see a gun__13__ out of his coat. The moment a loud noise __14__ my ears. Everything went black. I was falling…. After__15__seemed a very long time, I opened my eyes and found in bed! __16__shaking from the memory of this terrible dream, I got dressed and ran out of the house. As usual, the bus wasn’t on time, and I got to the bank at 9:25.
“Smith!” the manager cried out in a voice like thunder. “__17__of your excuse! Go start work at once!” To my__18__, the first customer was a girl __19__ a red dress and behind her stood a man carrying something wrapped in brown paper. The __20__! Wasn’t that the surprise of my life?

A．information

C．instruction

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有如下类声明； class SAMPLE { int n;public: SAMPLE(int i=0):n(i){} void setValue(int n0); }; 下列关于setValue成员函数的实现中，正确的是( )。

A．SAMPLE::setValue(int n0){n=n0;)

B．void SAMPLE::setValue(int n0){n=n0;}

C．void setValue(int n0){n=n0;}

D．(int n0){n=n0;}

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淮南师范学院隶属主管部门（）。

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