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Many people don’t have the same hobbies, but they can still be good friends. Li and Wang are good friends. Li likes collecting stamps, but Wang doesn’t. He likes swimming. Wang often asks Li to go swimming with him, but Li always says he is very busy. Yes, he is always busy with his stamps. “You should go swimming with me,” Wang often says to Li. “You should collect something,” Li often says to Wang. Wang likes playing the violin, but Li doesn’t. Li likes playing the piano. They like to help each other. That’s why they are good friends.
1．Friends always have the same hobbies.2．Li likes swimming and Wang likes collecting stamps.
3．Wang likes playing the violin.
4．Li likes playing the piano.
5．Wang and Li help each other and they’re good friends.
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
