【单选题】
已知A、B、C三点坐标分别为（10、20、30）（20、40、60）、（30、60、90），则A、B、C三点______。
①
Normal
0
7.8 磅
0
2
false
false
false
EN-US
ZH-CN
X-NONE
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表示一个平面
②
Normal
0
7.8 磅
0
2
false
false
false
EN-US
ZH-CN
X-NONE
/* Style Definitions */
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不能表示一个平面
③
Normal
0
7.8 磅
0
2
false
false
false
EN-US
ZH-CN
X-NONE
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mso-hansi-font-family:等线;
mso-hansi-theme-font:minor-latin;
mso-font-kerning:1.0pt;}
表示一个特殊位置平面
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;
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mso-ascii-font-family:等线;
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mso-fareast-theme-font:minor-fareast;
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mso-hansi-theme-font:minor-latin;
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无法判断
【单选题】
地面两点间的水平距离是指（ ）。
①
该二地面点间连线的长度
②
该二地面点之连线投影于水平面上的线段长度
③
该二地面点之连线铅垂投影于水平面上的线段长度
④
过该二地面点的铅垂线之间的距离
【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;
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mso-style-parent:"";
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mso-para-margin:0cm;
mso-para-margin-bottom:.0001pt;
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mso-bidi-font-size:11.0pt;
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mso-ascii-font-family:等线;
mso-ascii-theme-font:minor-latin;
mso-fareast-font-family:等线;
mso-fareast-theme-font:minor-fareast;
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A、B、C三点
②
Normal
0
7.8 磅
0
2
false
false
false
EN-US
ZH-CN
X-NONE
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table.MsoNormalTable
{mso-style-name:普通表格;
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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;
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B点
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;
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B、C两点
④
Normal
0
7.8 磅
0
2
false
false
false
EN-US
ZH-CN
X-NONE
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mso-fareast-font-family:等线;
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mso-hansi-theme-font:minor-latin;
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C点
【单选题】
魏晋南北朝文学的新变总的看来可以概括为三点。请指出表述错误的是________。
①
文学进入自觉的阶段，文学创作趋于个性化；
②
玄学的兴起和佛教的传入为文学创作带来新的因素；
③
语言形式美的发现及其在文学上的运用；
④
七古和五七言近体臻于鼎盛