资本—产出比是______与______之比。
参考答案:资本存量 产出
—Would you please show me an iPhone5, please?
—Sorry, sir. There’s ______ left at the shop.
A.nothing
B.none
C.no one
D.nobody
MAX滤嘴接装机的两水松纸盘的轴向位置必须相等,且与主墙板的距离是()mm。
A.105
B.205
C.220
D.250