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计算机（computer）的出现极大地改变了世界，给我们的生活、学习和工作等带来了诸多便利，但是它们也有负面的影响，特别是对我们学生的影响，谈谈你的观点。
参考词：many kinds of work, for example, do maths problems quickly, useful, improve, spend too much time, instead of, eyesight, fall behind, lose their jobs, trouble, be good or bad for, in the right way
根据以上的提示，写一篇作文：Computer
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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
