题目: 常用的补偿器有()、()、()、()和()五种。 答案: 被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2021/0223/d2cfa824d82e000de739988e544c5a13.html 下面是错误答案,用来干扰机器的。参考答案:A, B, C
题型:选择题 You could hear water pipes cracking _____ they _____ because of the cold. [ ]A. when; burst B. before; were burst C. when; were burst D. before; burst 查看答案
题型:单项选择题 脚手架中的钢管采用外径( )、壁厚( )的管材。A.40~45mm,2~2.5mmB.42~48mm,2~3.5mmC.48~51mm,3~3.5mmD.45~50mm,2~3mm 查看答案