The way we spend our time can be put into three “bottles”. These are the Necessary Tasks Bottle, the Voluntary Tasks Bottle and the Happiness Bottle.
Every day, we spend time
We then fill
This is why each day we have to try to fill out Happiness Bottle. I fill mine by going to the dancing class. And I always leave classes more
practiced music for charity. It was a time of fun, friendship and music-making. At the end of the evening, my Happiness Bottle was filled to top.
The challenge for each of us is to not let the day go by
Think about how your
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