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Chen Huan, 14, Beijing
My elementary school had calligraphy (书法) classes 1．. We found it a good way to relax and 2． our hand writing. I think that having good handwriting is really important. Teachers need to be able to read our homework and tests. In the future, our co-workers will also read what we write. Good handwriting can give others a good 3． of us.
Sun Run, 14, ZhejiangSome people think calligraphy classes will put pupils 4． great pressure. But imagine this - if we don't practise handwriting in primary school, we may have to do it in middle school. This idea, in fact, reduces our stress later on. Also, calligraphy is part of our culture. We should learn more about it.
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
