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- 1如图所示,直线AB、CD相交于点D,OE垂直于AB,点O为垂足,OF平分角AOC,且角EOC=2/5角AOC,求角DOF
- 2已知,m,n是两个连续自然数(m<n),q+mn,设p=根号q+n + 根号q-m,则p总是奇数还是总是偶数?
- 3I love piaying with Lucky and we are good friends的中文是什么
- 4在等腰梯形ABCD中,AD∥BC,AB=CD=5,AD=10,BC=16,点P是BC上的一点,若∠APD=90°,则BP=?
- 5数学题..救命
- 6he was just to ask what had made such a surprising change when the parrot went on saying,怎么翻译
- 7请问克、千克、斤、公斤之间如何换算?
- 8brother怎么读
- 9孔子讲到水的德行我自然会想到一句古语?讲到水有志向我自然让联想到一句成语?孔子讲到水流必向下想到谚语
- 10词汇:The park is five m______ away from here .let's take the bus .