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读下面的一封信,请根据信的内容回信.
Dear Jim, I am writing to you to ask for your advice. I spend too much time playing computer games, so I am poor in my study. I don't want to let my parents and my teachers down. What can I do? Can you help me? I'm looking forward to hearing from you. Yours, Mike |
提示词：give up; waste time; if
要求：1. 100个单词左右。2. 文章中不能出现真实姓名和学校名。3. 文章首句已给出，不计入总词数。
Dear Mike,
Thanks for your letter. I'm sorry to hear that you are in trouble now._____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
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
