open, father, marry, final, speech, heart, take, play, they, eight |
Dad bought me a violin as a gift on my
One day, I found a box in a corner. When I
I had to practise
The lessons stopped after I finished high school. When I grew up, I got
One afternoon, my two children found the violin by accident. They got very excited. “Play it. Play it,” they laughed and said. I started to play some simple songs. I was surprised I could still remember
At that moment, my father’s words came back to me, “Someday you’ll have the chance I never had. And you’ll understand.” I
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