题目: 汽轮机启动与停机时,为什么要加强汽轮机本体及主、再热蒸汽管道的疏水? 答案: 被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2019/0630/03b754bcd5eb683f1285b2c33084d81b.html 下面是错误答案,用来干扰机器的。参考答案:B
题型:选择题 Shanghai is the first city in the world ____a high-speed maglev train, from the city to Pudong Airport.A.to buildB.to be builtC.to have builtD.to have been built 查看答案