举一反三
- Passage 1 Passage 2 Passage 3 Passage 4 Passage 5/module/audioplay.html?objectid=0d4d67cd4caa47466bbbfe9d98db4623/module/audioplay.html?objectid=75ed077e152c0d8e6d32bdfa15d0f462/module/audioplay.html?objectid=7f97e02a165a06b5895a0f3cd1f1effc/module/audioplay.html?objectid=ad201e024960b245c0038edd35b08acb/module/audioplay.html?objectid=f48ce62a3b73a573d38434e86f8ba52c
- Passage 1 Passage 2 Passage 3 Passage 4 Passage 5/module/audioplay.html?objectid=0d4d67cd4caa47466bbbfe9d98db4623/module/audioplay.html?objectid=75ed077e152c0d8e6d32bdfa15d0f462/module/audioplay.html?
- Lesson 9 短对话选择-3/module/audioplay.html?objectid=53beaa77cbcdedba1fc134c3053e90a7
- Passage 3 (1104)/module/audioplay.html?objectid=1fed4791d9703d2cf166c7fc15c2a6b4
- Passage listening unit 3/module/audioplay.html?objectid=37e84a9fc826b01c638564566e692169
内容
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Questions 9 to 11 are based on the passage you have just heard./module/audioplay.html?objectid=69ab9cf7c1f00a7721e08565e781c78569ab9cf7c1f00a7721e08565e781c785
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下面这条消息中：FF FF FF FF FF 82 A2 06 BC 61 4E 01 00 B0是有数据的。
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lesson 9 短对话选择-9/module/audioplay.html?objectid=797ab6ead44a1aa0614af4cdd8d8b984
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Section BListen to the short dialogues and choose the best answer to each question.8. A: 06:30 B: 06:20 C: 06:40 D: 06:10
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以4，9，1为为插值节点，求\(\sqrt x \)的lagrange的插值多项式 A: \( {2 \over {15}}(x - 9)(x - 1) + {3 \over {40}}(x - 4)(x - 1) + {1 \over {24}}(x - 4)(x - 9)\) B: \( - {2 \over {15}}(x - 9)(x - 1) + {3 \over {40}}(x - 4)(x - 1) + {1 \over {24}}(x - 4)(x - 9)\) C: \( - {2 \over {15}}(x - 9)(x - 1) + {3 \over {40}}(x - 4)(x +1) + {1 \over {24}}(x - 4)(x - 9)\) D: \( - {2 \over {15}}(x - 9)(x - 1) + {3 \over {40}}(x - 4)(x - 1) - {1 \over {24}}(x - 4)(x - 9)\)