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( )（1）A. Yes there is. B. Yes, it is. C. No, it isn’t.
( )（2）A. I have five. B. There are five. C. I can see five.
( )（3）A.It’s my skirt. B. She’s Yang Ling. C. It’s Liu Yun.
( )（4）A. Yes, there is. B.Yes, there are. C. Yes, they are.
( )（5）A. It’s on the first floor. B. They’re on the sofa. C. It’s new.
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
