已知椭圆C:x的平方/a的平方+y的平方/b的平方=1(a>b>0)的离心率为三分之根号三，以原点为圆心，椭圆短半袖长为半径的圆与直线x-y+2=0已知椭圆C:x的平方/a的平方+y的平方/b的平方=1(a>b>0)的离心率为三分之根号三，以原点为圆心，椭圆短半袖长为半径的圆与直线x-y+2=0相切，A、B分别是椭圆的左右两个点，P为...
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已知集合A={x∈R|mx2﹣2x+3=0，m∈R }。若A中至多只有一个元素，则m=0或m≥ 1/3已知集合A={x∈R|mx2﹣2x+3=0，m∈R }。若A中至多只有一个元素，则m=0或m≥ 1/3
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已知abc为三角形ABC的三边的长,且满足a^2+b^2+c^2=ab+bc+ac,则ABC的形状是等边三角形已知abc为三角形ABC的三边的长,且满足a^2+b^2+c^2=ab+bc+ac,则ABC的形状是等边三角形
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已知不等式x∧2+(1-m)x+1＞0对任意的x∈(-1,+∞)都成立，则m可以在{-1}U(3,+∞)中随便取值。随便取值！
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嗯打得不错谢谢你抱歉我选择死亡！嗯打得不错谢谢你抱歉我选择死亡！
嗯打得不错谢谢你抱歉我选择死亡！ 嗯打得不错谢谢你抱歉我选择死亡！ 嗯打得不错谢谢你抱歉我选择死亡！ 嗯打得不错谢谢你抱歉我选择死亡！...
Joey·Cooper
7-26
Joey·Cooper
(點擊/回復: 739/0)
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百度贴吧越来越商业化他应该去割老二！
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She remains working.I remain practising English.
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For what reasons do you study English?For what reasons don't you learn French?
巨大八爪鱼
7-26
JosephHeinrich
(點擊/回復: 651/1)
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How many stones have fallen?How many stones had fallen before the plane landed?
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Why does he become the admin?Because he wants to remove some posts.
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Did she jump down the building?Where did she jump down the building?
For what reasons did she jump down the building? What di... |
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What language do people there speak?They speak English.
Hello
巨大八爪鱼
7-26
JosephHeinrich
(點擊/回復: 664/1)
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Why do you like Australia?Because the animals there are very cute.
巨大八爪鱼
7-26
JosephHeinrich
(點擊/回復: 640/1)
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