题目

阅读短文，从每题所给的A、B、C和D四个选项中，选出最佳选项。 Deisha walked up and down as she waited backstage. This would be her mostimportant piano performance yet. At ten years old, she was the youngestperformer in the recital (音乐演奏会). She had practiced playing her song more than 30times that week. When she closed her eyes at night the music played over andover again in her head.Now that the day had arrived. Deisha was not sure she was ready. Shesmoothed her hair and picked a piece of lint (绒毛) from the new dress that her mother had bought forher. She 把5m长的绳子平均分成4段，每段占全长的()()，每段长______m．