搜索
（1）A. Thank you. B. It’s not nice. C. That’s OK.
（2）A. I have some sweets.
B. We need some sweets.
C. They need some sweets.
（3）A. There are some magazines.
B. Yes, they’re newspapers.
C. They’re on the desk.
（4）A. They’re five squares.
B. There are five squares.
C. I can see some squares.
（5）A. Yes, I do.
B. I like monkeys.
C. We have dogs.
（6）A. I like playing the violin.
B. I can play football.
C. I’m playing the piano.
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
