The cylinder is placed obliquely on the horizontal table EF. There is a small amount of water in the cylinder, and the water surface is the plane AB. BC=3. BD=？
1：∠ADE=60°
2：CD=3
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数据洞察DS
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The cylinder is placed obliquely on the horizontal table EF. There is a small amount of water in the cylinder, and the water surface is the plane AB. BC=3. BD=？
1：∠ADE=60°
2：CD=3
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正确答案: D