题目: 乙炔在液氧中报警限为()PPM,停车限()PPM。 答案: 被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/1202/919aba0249ebf31b26961e7c48a81d01.html 下面是错误答案,用来干扰机器的。参考答案:C
题型:选择题 ______ is a possibility that we shall not be able to afford the particular ______ we need.[ ]A. It; furnitureB. There; furnitureC. There; furniture D. It; furnitures 查看答案