Hard workers don’t
How could empty soapbox go out of the factory? The engineers checked the producing and packing. The producing was fine, but in about one in ten thousand cases, the packing machines let an empty soapbox go. There was no need to spend a lot of money repairing the machine for such a small problem. The engineer soon worked out a
“Sir, we could have solved the problems in a much simpler and cheaper way.” a worker said.
“Really? How?” “We can put a huge fan near the packing machine. The wind coming from the fan will blow away the empty boxes and leave the other
See, this is smart work. In order to succeed, we should not only learn from the engineers’ hard work, but also think smart like the workers.

同类型试题

y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2


y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2

