如果□和○各代表一个数，已知（□+○）×0.4=3.2，□÷0.5=10，那么，□=（ ），○=（ ）。
5；3
If Josh, Doug, and Brad have a total of $72 among them, and Josh has three times as much money as Brad but only three-fourths as much as Doug, how much money does Doug have ？（）
A. $8
B. $9
C. $27
D. $32
E. $36
堆取料过程中，因故障需停车时，必须将全部控制手柄打到零位，并断开（）。待情况检查清后，重新启动运转机构。
