无障碍设施坡道的宽度一般为（）
A.1m
B.1.5m
C.2m
D.2.5m
E.3m
参考答案：B
During deflation and decreasing inventory quantities, a company using LIFO rather than FIFO. What is the effect on cost of goods sold and cash flows Cost of Good Sold Cash Flow（）①A. lower lower ②B. higher lower ③C. lower higher.
A. ①
B. ②
C. ③
WK-4型提梁与铲斗连接销轴，磨损后不得小于多少mm？
