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B: Hello, Tom. Tom, this is my friend, Sam.
A: Hello, Sam.
C: Hello, Tom. Nice to meet you.
A: Nice to meet you, too. Look, this is my new ball. It's red and white. I like it very much.
B: It’s beautiful. I like it, too.
A: Let's play with it together, OK？
B&C: Great！
1．A is Cindy.
2．B is Cindy.
3．Sam is a cat.
4．The ball is Cindy's.
5．The ball is white and red.
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
