题目

阅读理解 阅读下列短文, 从每小题所给的A、B、C、D四个选项中选出一个最佳选项。 Long, long ago there was a very foolish thief. Do you know what he did one day? When he wanted to steal(偷) the bell on his neighbour’s door, he walked up to the door, took hold of(抓住) the bell and pulled hard. The bell made a very loud noise. The thief was afraid and went home.     Then he sat down to think, “I must do something about the noise,” he said. He thought and thought. At last he had an idea. “Ah, I’ll put some cotton in my ears. Then I won’t be ab函数y＝（－1≤x<0）的反函数是        A．y＝l＋（x>0）             B．y＝－l＋（x>0）    C．y＝l＋（1≤x＜3）         D．y＝－l＋（1≤x<3）