A.Happy birthday! |
B.I will help you. |
C.Sorry, mum. I can’t. |
D.Who can help me? |
Sam: Where’s your mum?
Jack: She’s at the supermarket. (1)______________
Sam: Can I come to your birthday party?
Jack: Of course, you can.
Mum: I can’t carry the bags. (2)______________
Jack: (3)______________ I’m making a birthday card.
Sam: (4)______________
Mum: Thank you, Sam. Oh no, all the balloons are flying away.
Sam: But look at the sky. It says “(5)______________”
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同类型试题
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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
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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

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