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1. 文章不少于80词，不少于6句话。
2. 涵盖海报所有要点，可适当发挥，全文准确通畅。
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“Together For The Future”
2022 is a new start, what makes you unforgettable in 2021? It can be
activities, TV programs, news, great people and so on. All work and no play
makes Jack a dull boy. When we enjoy ourselves, danger is sometimes around us.
What should we remember to do and not to do to avoid it? In 2022, what do you
want to say to others? Write down your passage and give it to us!
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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
