【单选题】【消耗次数：1】
振动排痰高频组为（）cps
①
10-15
②
15-20
③
20-25
④
25-30
⑤
30-35
参考答案：
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相关题目
【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。
①
交换排序法
②
选择排序法
③
插入排序
④
选择排序
【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
0
7.8 磅
0
2
false
false
false
EN-US
ZH-CN
X-NONE
A与D，D点可见
②
Normal
0
7.8 磅
0
2
false
false
false
EN-US
ZH-CN
X-NONE
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B与C，B点可见
③
Normal
0
7.8 磅
0
2
false
false
false
EN-US
ZH-CN
X-NONE
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A与C，A点可见
④
Normal
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7.8 磅
0
2
false
false
false
EN-US
ZH-CN
X-NONE
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A与C，C点可见
【单选题】
A点坐标为（10、20、30），B点坐标为（30、20、30）则AB距离为______。
①
Normal
0
7.8 磅
0
2
false
false
false
EN-US
ZH-CN
X-NONE
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正垂线
②
Normal
0
7.8 磅
0
2
false
false
false
EN-US
ZH-CN
X-NONE
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mso-padding-alt:0cm 5.4pt 0cm 5.4pt;
mso-para-margin:0cm;
mso-para-margin-bottom:.0001pt;
mso-pagination:widow-orphan;
font-size:10.5pt;
mso-bidi-font-size:11.0pt;
font-family:等线;
mso-ascii-font-family:等线;
mso-ascii-theme-font:minor-latin;
mso-fareast-font-family:等线;
mso-fareast-theme-font:minor-fareast;
mso-hansi-font-family:等线;
mso-hansi-theme-font:minor-latin;
mso-font-kerning:1.0pt;}
侧垂线
③
Normal
0
7.8 磅
0
2
false
false
false
EN-US
ZH-CN
X-NONE
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mso-hansi-theme-font:minor-latin;
mso-font-kerning:1.0pt;}
正平线
④
Normal
0
7.8 磅
0
2
false
false
false
EN-US
ZH-CN
X-NONE
/* Style Definitions */
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mso-hansi-theme-font:minor-latin;
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铅垂线
【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
0
7.8 磅
0
2
false
false
false
EN-US
ZH-CN
X-NONE
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A、B、C三点
②
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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B点
③
Normal
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7.8 磅
0
2
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false
EN-US
ZH-CN
X-NONE
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B、C两点
④
Normal
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7.8 磅
0
2
false
false
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EN-US
ZH-CN
X-NONE
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C点
【单选题】
一组记录的关键字序列为（25，50，15，35，80，85，20，40，36，70），其中含有5个长度为2的有序表，按归并排序的方法对该序列进行一趟归并后的结果为（ ）。
①
A .(15,25,35,50,80,20,85,45,70,36)
②
B．(15,25,35,50,20,40,80,85,36,70)
③
C．(15,25,50,35,80,85,20,36,40,70)
④
D．(15,25,35,50,80,20,36,40,70,85)
随机题目
【简答题】
<p>简述“样式雷”及其历史贡献。</p>
【简答题】
<p>简述慧远在佛教方面的贡献。</p>