搜索
A: I have a pair of new shorts.
B: _____________________________
A: They are 20 yuan.
B: Oh, they are very cheap.
A: Yes. What’s the weather like tomorrow? ___________________________
B: Yes, it’s sunny tomorrow.
A: Good. I am going to the farm. There are many animals. Look! I have a picture of the farm.
B: Oh, it’s very big. __________________________
A: No, it’s not a horse. It’s a donkey.
B: ___________________________
A: They are goats.
B: ___________________________
A: The sheep is under the tree.
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
