搜索
( ) 1. Do you like the present? A I’m sorry.
( ) 2. How was your holiday? B OK.
( ) 3. Let’s make a poster. C We are going to have a party.
( ) 4. What did you do last May Day? D I visited the Palace Museum.
( ) 5.Is our city clean? E It comes from the trees.
( ) 6.What does the wood come from? F No, it isn’t.
( ) 7. You shouldn’t draw on the desk. G It was great fun.
( ) 8. What are you going to do at Christmas? H Yes, I do.
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
