These are Cara and Ben. They are twins (双胞胎). They are twelve. This is their bedroom. It's a nice room. There are two beds in the room. The yellow bed is Cara's and that green one is Ben's. The twins have one desk and two chairs. The chairs look the same. Cara's sweater is on his bed. Ben's coat is on his chair. Their clock, books and pencil-boxes are on the desk. Their schoolbags are behind the chairs.

请名人做广告是一种利用名人所具有的优势来快速提升产品的知名度的营销策略。但那英为“喜之郎”所作的广告宣传中，那英的形象和年龄与“喜之郎”的市场定位严重不符。①所以说，这种名人广告也实现了广告宣传的目的。更有甚者，名人代言的产品最后被证实名不副实，这种名人广告恐怕也只是宣传了自己。而从销售一线干上来的格力电器股份有限公司董事长董明珠则亲自上阵为自己的产品做广告。她能脱口说出空调的所有性能，消费者有充足的理由相信她所介绍的产品。可见，这种广告模式一定会代替原有的名人代言的广告模式。

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已知抛物线y²＝2px(p＞0)与圆x²＋y²＝4相交于A，B两点，且|AB|＝ $2\sqrt{3}$ ，则p＝(　　)