导线温度每升高1℃所引起的相对变形，称为导线的温度热膨胀系数，单位是摄氏度（℃）
参考答案：错
感应机构的作用？
The country itself didn't have enough gas, so the government decided to _______ its gas supplies to other countries. [ ]
A. cut away
B. cut off
C. cut down
D. cut out
