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魏某，女，62岁。因口角斜2日来诊。查体：双眼闭合有力，示齿口角左偏。

中枢性面瘫和周围性面瘫的鉴别要点是（）。

A.前者额纹消失

B.后者病原菌在皮质脑干束

C.前者多有舌前三分之二味觉改变

D.后者眼睑闭合无力

E.前者口角下垂

答案

参考答案：D

填空题

（）是识别声源的重要方法，特别是对噪声频谱的（）和（）进行分析。
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问答题

In January 2011 Department Store entered into a sales contract with Appliance Co to buy 100 refrigerators from the latter at a price of RMB 3,000 yuan/piece, total price being RMB 300,000 yuan. The payment would be made in two instalments: 100,000 yuan as advance payment to be paid after the conclusion of the contract, and the remaining 200,000 yuan to be paid in April 2011. Upon receiving the advance payment Appliance Co would deliver all the products. After the conclusion of the sales contract, Department Store made the first payment of 100,000 yuan and received all the products delivered by Appliance Co. In the same month, Appliance Co intended to rent a space of 100 m2 from Department Store to exhibit its other appliance products. For this purpose the two parties entered into a rental agreement and agreed upon the following terms and conditions: the term of rental would be one year as from January to December 2011; the total rental would be RMB 400,000 yuan and be paid RMB 100,000 yuan quarterly within the first 10 days of January, April, July and October. At the end of March 2011 Appliance Co sent Department Store a written notice, stating that it would set off its rental of RMB 200,000 yuan for the second and third instalments with the remaining price of 200,000 yuan for the refrigerators. Required: Answer the following questions in accordance with the relevant provisions of the Contract Law, and give your reasons for your answer:

(a) state the nature and different forms of set-off as presented by Appliance Co to Department Store; (4 marks)
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