左边给定的是纸盒的外表面,右边哪一项能由它折叠而成?

作者: tihaiku 人气: - 评论: 0
问题 左边给定的是纸盒的外表面,右边哪一项能由它折叠而成?
选项
答案 A
解析 根据題干,A项可由其折叠而成;B项,两侧面的对角线不可能相交,排除;C项,上底面应是只有一条对角线的平面;D项,右侧面应为有两条对角线的平面。故本题正确答案为A。

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  • 消息: [程序异常] : MISCONF Redis is configured to save RDB snapshots, but it's currently unable to persist to disk. Commands that may modify the data set are disabled, because this instance is configured to report errors during writes if RDB snapshotting fails (stop-writes-on-bgsave-error option). Please check the Redis logs for details about the RDB error.
  • 文件: /twcms/kongphp/cache/cache_redis.class.php
  • 位置: 第 85 行
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