【单选题】【消耗次数：1】
普遍认为微课的时间以__________分钟为宜。
①
5-8
②
8-15
③
15-20
④
20-30
参考答案：
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相关题目
【单选题】
<img src=https://huaweicloudobs.ahjxjy.cn/15FFD8CCDC7FB80A101BD51241666868.png title=20.png alt=20.png/>
①
<img src=https://huaweicloudobs.ahjxjy.cn/388DA3CDE22224965EA44D32ADAC979C.png title=20-1.png alt=20-1.png/>
②
<img src=https://huaweicloudobs.ahjxjy.cn/583DD37236D66E9138000A0F27AC1A49.png title=20-2.png alt=20-2.png/>
③
<img src=https://huaweicloudobs.ahjxjy.cn/EED687475DD1FD54EDA868177254615B.png title=20-3.png alt=20-3.png/>
④
<img src=https://huaweicloudobs.ahjxjy.cn/8B0174BB184C938A278FF7FAFDC99C18.png title=20-4.png alt=20-4.png/>
【单选题】
<img src=https://huaweicloudobs.ahjxjy.cn/30D042F5C5CA20B112953E89D9ECCF60.png title=15.png alt=15.png/>
①
<img src=https://huaweicloudobs.ahjxjy.cn/79C4B02007A45890BAC544E02B69BB5E.png title=15-1.png alt=15-1.png/>
②
<img src=https://huaweicloudobs.ahjxjy.cn/028F192CC9D2AD01452B4D3F4D921B9E.png title=15-2.png alt=15-2.png/>
③
<img src=https://huaweicloudobs.ahjxjy.cn/A5D6BA6CE2C3B6379086689A7627120E.png title=15-3.png alt=15-3.png/>
④
<img src=https://huaweicloudobs.ahjxjy.cn/65AE7C5AC78CF7ABB33F7DD01861D3EE.png title=15-4.png alt=15-4.png/>
【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（）
①
(15，30，35)
②
( 30,20,15)
③
( 15，20，30)
④
( 10,20,5)
【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/4E2BC0C8B30B24E8ED4792DC6A414565.png title=15.png alt=15.png/>
①
<img src=https://huaweicloudobs.ahjxjy.cn/69D1B1DEE10A3DE506F61FC2F25B9B6C.png title=15-1.png alt=15-1.png/>
②
<img src=https://huaweicloudobs.ahjxjy.cn/4E4B73E0863397CC11E26D49EB2F50C4.png title=15-2.png alt=15-2.png/>
③
<img src=https://huaweicloudobs.ahjxjy.cn/A1296DAD6378394DCF59D61A0A846D08.png title=15-3.png alt=15-3.png/>
④
<img src=https://huaweicloudobs.ahjxjy.cn/6129F2DBDD466DD8AC4A131229BBC117.png title=15-4.png alt=15-4.png/>
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