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| 观点 | 赞成 | 反对 |
| 理由 | 1.便于联系：……2.获取信息：…… | 1.浪费时间：……2.危害身心健康：…… |
| 你的观点及理由 | ||
要求:1.包含所有要点,不逐字翻译,围绕要点适当发挥; 于书写规范、工整,条理清晰;
2.文中不得出现真实人名、地名、校名等;
3.词数:80词左右,短文开头已给出,不计入总词数。
Can middle school students use mobile phones at school?
Nowadays, more and more teenagers use mobile phones. Can middle school students use mobile phones at school? Different students have different opinions 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
