题目

Mrs. Janes gave music lessons at a school. She had a good voice and enjoyed singing, except that some of her high tones sound like a gate that had forgotten to oil. Mrs. Janes knew her weakness well, and took every chance she could find to practise these high notes. As she lived in a small house, where she could not practise without disturbing the rest of the family, she usually went for long walks along the country roads whenever she had time and practised her high notes there. Whenever she heard a car or a person coming along the road, she stopped and waited until she could no longer be hear某同学用温度计测量液体温度的实验步骤：A、读出温度计的示数，并记录．B、让温度计玻璃泡与被测液体充分接触；C、观察温度计的量程及分度值；选择适当的温度计；D、从液体取出温度计；E．估计被测物液体的温度；则实验步骤正确的顺序应是ECBADECBAD．