搜索
I II
( ) 1. What day is it today? A It was great fun.
( ) 2. Where are you going? B Because I can get red packets.
( ) 3. How was the holiday? C No, she didn’t.
( ) 4.What is she going to do? D Yes, they are.
( ) 5. Did she watch firecrackers yesterday? E We’re going to the shopping centre.
( ) 6. Are they going to the park this Sunday? F It’s Monday.
( ) 7. Why do you like Chinese New Year? G She’s going to watch a lion dance.
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
