As we know, fish ___die out of water.

As we know, fish ___die out of water.

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已知集合A = [2,4), B = [3,5], 则(∁ R A) ∩ B = ( )

已知集合A = [2,4), B = [3,5], 则(∁ R A) ∩ B = ( )

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—Tom, please have some fish. —Thanks. It tastes________. I want more.

—Tom, please have some fish. —Thanks. It tastes________. I want more.

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—How do you like his speech? —I think it’s ________, but some people think it’s

—How do you like his speech? —I think it’s ________, but some people think it’s so ________.

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如图, 在四棱锥 P﹣ ABCD 中, 底面 ABCD 是平行四边形, ∠BCD=135° ,侧面 PAB⊥底面 ABCD, ∠BAP=90° , AB=AC=

如图, 在四棱锥 P﹣ ABCD 中, 底面 ABCD 是平行四边形, ∠BCD=135° ,侧面 PAB⊥底面 ABCD, ∠BAP=90° , AB=AC=PA=2, E, F分别为 BC, AD

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