【单选题】【消耗次数：1】
常见楼梯的坡度范围为（ ）
①
30～60
②
20～45
③
45～60
④
30～45
参考答案：
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相关题目
【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
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mso-bidi-font-size:11.0pt;
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mso-hansi-font-family:等线;
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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
/* Style Definitions */
table.MsoNormalTable
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mso-hansi-font-family:等线;
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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
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mso-bidi-font-size:11.0pt;
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mso-hansi-theme-font:minor-latin;
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无法判断
【单选题】
45．水丸的制备工艺流程为
①
原料的准备、起模、泛制成型、盖面、干燥、选丸、包衣、打光
②
原料的准备、起模、泛制成型、盖面、选丸、干燥、包衣、打光
③
原料的准备、起模、泛制成型、干燥、盖面、选丸、包衣、打光
④
原料的准备、起模、泛制成型、干燥、选丸、盖面、包衣、打光
⑤
原料的准备、起模、泛制成型、干燥、包衣、选丸、盖面、打光
【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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mso-hansi-theme-font:minor-latin;
mso-font-kerning:1.0pt;}
正垂线
②
Normal
0
7.8 磅
0
2
false
false
false
EN-US
ZH-CN
X-NONE
/* Style Definitions */
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mso-hansi-font-family:等线;
mso-hansi-theme-font:minor-latin;
mso-font-kerning:1.0pt;}
侧垂线
③
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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mso-hansi-theme-font:minor-latin;
mso-font-kerning:1.0pt;}
正平线
④
Normal
0
7.8 磅
0
2
false
false
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ZH-CN
X-NONE
/* Style Definitions */
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mso-font-kerning:1.0pt;}
铅垂线
随机题目
【判断题】
在幼儿园歌唱教学中药做到“培养幼儿有表情地唱歌”要具备两个基本条件：培养幼儿对歌曲内容情感有发自内心的情绪体验和感受；培养幼儿有用以表达内心感受的歌唱技能技巧。
①
正确
②
错误
【单选题】
以下哪一项不属于教师介入幼儿区角活动的时机（ ）
①
当幼儿在探索操作过程中出现困难向教师求助或准备放弃时
②
当幼儿在探索操作过程中发生纠纷影响活动时
③
当幼儿长时间盲目探索无法正常活动时，教师可介入
④
当幼儿正常活动时