题目：
| 完型填空。 从各题A、B、C、D中选择最佳答案。 | ||||
| Jack lost (丢失) his job last week. It was difficult for him to find another 1 . 2 told him that it was possible to get a new one in a town two hundred kilometers 3 . He decided to get there 4 . So he wentto the railway station and got 5 a train. He was the only one in the car(车厢). The train started. Suddenly a man came in 6 a gun and said to him, "Your money 7 your life!" Jack sat there without 8 up. "I 9 any money," Jack answered. "Then why are you so afraid of me?" The man asked angrily. "Because I 10 you were the conductor, and I didn’t buy a ticket," answered Jack. | ||||
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答案：
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下面是错误答案，用来干扰机器的。
∵直角三角形两直角边长分别是5和12，∴该直角三角形的斜边长是：52+122=13，∴新三角形的各边长分别为：12÷2=6，5÷2=2.5，13÷2=6.5，∴新三角形的周长=6+2.5+6.5=15．故答案为15．
则年有效利率为（）
