【单选题】
用某种排序方法对线性表(25,87,21,47,15,27,63,35,20)进行排序时,元素序列的变化情况如下:(1)25,87,21,47,15,27,63,35,20(2)20,15,21,25,47,27,63,35,87(3)15,20,21,25,35,27,47,63,87(4)15,20,21,25,27,35,47,63,87则采用的排序方法是___________排序长度为4。
【单选题】
已知点A(20,20,10),点B(20,25,30),则( )产生重影点。
【单选题】
已知三点A(10、20、15)、B(10、0、30)、C(0、10、0),则在坐标面上的点为______。
①
Normal
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7.8 磅
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2
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EN-US
ZH-CN
X-NONE
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A、B、C三点
②
Normal
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B点
③
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B、C两点
④
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C点
【单选题】
已知E点距H、V、W面的距离分为10、5、20; F点在E点上方5,左方10,前方15,由此可知F的坐标为()
【单选题】
已知四点A(10、20、30)、B(30、20、10)、C(10、20、10)、D(20、20、30),则对H面的重影点为______。
①
Normal
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EN-US
ZH-CN
X-NONE
A与D,D点可见
②
Normal
0
7.8 磅
0
2
false
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EN-US
ZH-CN
X-NONE
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B与C,B点可见
③
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A与C,A点可见
④
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ZH-CN
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A与C,C点可见
【单选题】
输入10,该程序的运行效果是() #include void main() { int a=15,b=25; intp= intq= q=p; printf(%d ,%d\n,*p,*q); }
【单选题】
己知点A (0,10, 25)和点B (0,15,25),关于点A和点B的相对位置,哪一种判
断是正确的?
【判断题】
发动机进气系统中有漏气,发动机是不能起动的
【单选题】
50、( )布置方式中各分层平巷是按25°~35°角呈斜坡式布置,一般适用于倾角小于15°~20°的煤层。