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| A． Jack: Hi, Miffy. Miffy: Good morning! Jack! Jack: Have you got a pet? Miffy: Yes, I have. Jack: What have you got? Miffy: Some goldfish. Jack: How many have you got? Miffy: Three. And what have you got? Jack: I have got 2 rabbits. Miffy: What colour are they? Jack: White, of course. (1). Miffy has got a pet. (2). Jack has got some goldfish. (3). Miffy has four goldfish. (4). Miffy has got 2 rabbits. (5). Jack's rabbits are white. |
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
