搜索
Lili’s birthday is coming. Xiaohong and I are buying things for her. The birthday cake is 10 yuan. The balloons are 15 yuan. And the flowers are 17 yuan. The cola is 6.5 yuan. We buy so many things. And we can’t carry all. The oranges are falling down the stairs. Xiaobing is coming. He is going to help us. Lili is very happy. And she is going to play the suona.
1．Who is going to have a birthday party?2．How much is the birthday cake?
3．Are the oranges falling down the stairs?
4．Who is going to help us?
5．What is Lili going to play?
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
