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| No, she is a reporter. The mobile phone! You won’t read e-books. I hope to have a mobile phone. Could I have a mobile phone? I will learn English and send e-mails. My mother says young students shouldn’t have mobile phones. |
A: Look at these things! What do you think is the most useful?
B:
A: Do you have a mobile phone?
B: No, I don’t.
A: Is your mother a teacher?
B:
A: If you have a mobile phone, what will you do on it?
B:
A:
B: Because I think that’s bad for my eyes.
A: You are right.
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
