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为避免学生过于斜视而影响视力，水平视角及前排边座与黑板远端的视线夹角应大于等于（ ）度

单选题
2021-07-17 23:51
A、<span lang="EN-US" style="FONT-SIZE: 10pt; FONT-FAMILY: " times="" new="" roman";="" mso-font-kerning:="" 1.0pt;="" mso-ansi-language:="" en-us;="" mso-fareast-language:="" zh-cn;="" mso-bidi-language:="" ar-sa;="" mso-fareast-font-family:="" 宋体"="">10</span>
B、<span lang="EN-US" style="FONT-SIZE: 10pt; FONT-FAMILY: " times="" new="" roman";="" mso-font-kerning:="" 1.0pt;="" mso-ansi-language:="" en-us;="" mso-fareast-language:="" zh-cn;="" mso-bidi-language:="" ar-sa;="" mso-fareast-font-family:="" 宋体"="">15</span>
C、<p><span lang="EN-US" style="FONT-SIZE: 10pt; FONT-FAMILY: " times="" new="" roman";="" mso-font-kerning:="" 1.0pt;="" mso-ansi-language:="" en-us;="" mso-fareast-language:="" zh-cn;="" mso-bidi-language:="" ar-sa;="" mso-fareast-font-family:="" 宋体"="">20</span></p>
D、<p><span lang="EN-US" style="FONT-SIZE: 10pt; FONT-FAMILY: " times="" new="" roman";="" mso-font-kerning:="" 1.0pt;="" mso-ansi-language:="" en-us;="" mso-fareast-language:="" zh-cn;="" mso-bidi-language:="" ar-sa;="" mso-fareast-font-family:="" 宋体"="">30</span></p>
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正确答案
D
试题解析
标签： 土木工程 专升本 房屋建筑设备 2020年第二学期补考 工程造价 房屋建筑学 2020年第二学期期末考试 房地产开发与管理
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