如图,在△ABC中,AC=4,∠A=60°,∠B=45°,BC边的垂直平分线DE交AB于点D,连接CD,则AB的长为_________________.

如图,在△ABC中,AC=4,∠A=60°,∠B=45°,BC边的垂直平分线DE交AB于点D,连接CD,则AB的长为_________________.

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﹣2的相反数是( )

﹣2的相反数是( )

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Would you like to ______us in our discussion.

Would you like to ______us in our discussion.

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are going to, the students, tomorrow, an art museum (?)

are going to, the students, tomorrow, an art museum (?)

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—______shall we meet for the picnic?—At the school gate

—______shall we meet for the picnic?—At the school gate

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