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（ ）（1） A. Tom is. B. Jim does. C. Tom’s is.
（ ）（2） A. Yes, I do. B. No, they don’t. C. Yes, we do.
（ ）（3） A. Yours is, I think. B. Hers is longer. C. It's hers.
（ ）（4） A. About 2 kilometres away. B. On Zhongshan Road. C. Only three stops.
（ ）（5） A. She’s good at singing.
B. She’s good at playing basketball.
C. He’s good at playing football.
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
