【单选题】
<img src=https://huaweicloudobs.ahjxjy.cn/9F1114FFD7E68B2E0D2CA48E4B785D19.jpg title=15.jpg alt=15.jpg/>
①
<img src=https://huaweicloudobs.ahjxjy.cn/A91531BB38C9FC8B28A40C8B4EB62A5F.jpg title=15-1.jpg alt=15-1.jpg/>
②
<img src=https://huaweicloudobs.ahjxjy.cn/F2A87C1169D8C03496E7BF21A44ADA76.jpg title=15-2.jpg alt=15-2.jpg/>
③
<img src=https://huaweicloudobs.ahjxjy.cn/A58017B6209C12A4943D08542709622A.jpg title=15-3.jpg alt=15-3.jpg/>
④
<img src=https://huaweicloudobs.ahjxjy.cn/A35C6D0A1F4222278AC50E322289FF7C.jpg title=15-4.jpg alt=15-4.jpg/>
【单选题】
<img src=https://huaweicloudobs.ahjxjy.cn/0B50D8A21EC45CBF0306B6209A86BEDF.png title=15.png alt=15.png/>
①
<img src=https://huaweicloudobs.ahjxjy.cn/32E4B0EEC43470901C7BC1AAD4BDA50C.png title=15-1.png alt=15-1.png/>
②
<img src=https://huaweicloudobs.ahjxjy.cn/F52C0D2D0E49B4C308FC26F8FFBFB47F.png title=15-2.png alt=15-2.png/>
③
<img src=https://huaweicloudobs.ahjxjy.cn/CD1124B4125986153B28B39EB21735B7.png title=15-3.png alt=15-3.png/>
④
<img src=https://huaweicloudobs.ahjxjy.cn/2005F9CAF59CA2F13D79E6199CFD23DB.png title=15-4.png alt=15-4.png/>
【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
/* Style Definitions */
table.MsoNormalTable
{mso-style-name:普通表格;
mso-tstyle-rowband-size:0;
mso-tstyle-colband-size:0;
mso-style-noshow:yes;
mso-style-priority:99;
mso-style-parent:"";
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;}
A、B、C三点
②
Normal
0
7.8 磅
0
2
false
false
false
EN-US
ZH-CN
X-NONE
/* Style Definitions */
table.MsoNormalTable
{mso-style-name:普通表格;
mso-tstyle-rowband-size:0;
mso-tstyle-colband-size:0;
mso-style-noshow:yes;
mso-style-priority:99;
mso-style-parent:"";
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;}
B点
③
Normal
0
7.8 磅
0
2
false
false
false
EN-US
ZH-CN
X-NONE
/* Style Definitions */
table.MsoNormalTable
{mso-style-name:普通表格;
mso-tstyle-rowband-size:0;
mso-tstyle-colband-size:0;
mso-style-noshow:yes;
mso-style-priority:99;
mso-style-parent:"";
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;}
B、C两点
④
Normal
0
7.8 磅
0
2
false
false
false
EN-US
ZH-CN
X-NONE
/* Style Definitions */
table.MsoNormalTable
{mso-style-name:普通表格;
mso-tstyle-rowband-size:0;
mso-tstyle-colband-size:0;
mso-style-noshow:yes;
mso-style-priority:99;
mso-style-parent:"";
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;}
C点
【单选题】
<img src=https://huaweicloudobs.ahjxjy.cn/15CC5C92239613448B337D0E9A335438.jpg title=79-D.jpg alt=79-D.jpg/>
①
<img src=https://huaweicloudobs.ahjxjy.cn/D4A292630250E8141475BF1481604038.jpg title=79-1.jpg alt=79-1.jpg/>
②
<img src=https://huaweicloudobs.ahjxjy.cn/6F883B66B534C093E54D238FB5874332.jpg title=79-2.jpg alt=79-2.jpg/>
③
<img src=https://huaweicloudobs.ahjxjy.cn/00288B8DC2650E263A2C69F31096951A.jpg title=79-3.jpg alt=79-3.jpg/>
④
<img src=https://huaweicloudobs.ahjxjy.cn/2F0C5E7E19C557E74CD2FC192B7B4F08.jpg title=79-4.jpg alt=79-4.jpg/>