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杜荀鹤的《春宫怨》中写道:“年年越溪女,相忆采芙蓉。”诗句中的“芙蓉”是指什么花?
首先提出”普及教育”口号的是在( )时期。
不属于CT特殊功能的是()
矿体的产状要素是主要用来确定板状矿体的空间位置,通常用走向不用倾向、倾角来表示。
未与中国签订协议或者共同参加国际条约的国家的作者以及无国籍人的作品(),才能受受著作权法保护。
下面哪些方法能使涂膜减少锈蚀()
有关像质计使用的说法正确的是()
说明在HTML中定义表格中行与表头的语法。
肺通气功能评定采用6级制的主观呼吸功能障碍程度评定,其中,慢走即有气短属于几级()。
螺旋扫描特有的参数是()
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