选煤厂厂房内的主要通道宽度不得小于（）米，次要通道不得小于（）米。
参考答案：1.5；0.7
Everyone in the village hoped that he would____after a few days' treatment. [ ]
A. pick up
B. come up
C. keep up
D. make up
限速器的垂直度应小于（）mm。
