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B: What's the matter, Dingding?
A: I have a PE lesson this morning. And I have a running match. But I can't run well.
B: Don't be sad, dear. I can help you.
A: Really?
B: You can get up early (早地). And run every morning before you go to school.
A: Good idea.
1．Dingding is happy today.
2．Dingding has a jumping match today.
3．Dingding can't run well.
4．Dingding will run every evening.
5．Dad can help Dingding.
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
