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Helen: It’s Tuesday.
Lily: Let’s go to play football this afternoon.
Helen: Sorry, I’m busy. I have Music and Chinese.
Lily: What about Liu Tao?
Helen: He doesn’t have any lessons.
Lily: All right.
Helen: But he has a table tennis match.
Lily: What a pity!
1．Today is Thursday.
2．Helen can’t play football with Lily.
3．Lily has Music and Chinese in the morning.
4．Liu Tao can’t go to play football, either.
5．Liu Tao has a basketball match.
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
