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Look! This is a picture, in this picture, you can see hills, trees and a school. You can see some boys and girls. They are at school. The school is a middle school. Ling Ling and Lan Lan are good friends. Ling Ling is twelve. Lan Lan is twelve, too. Mr Li is their teacher. He is a good teacher.
1．In the picture, we can see birds and trees. （2．Ling Ling and Lan Lan are at a middle school. （
3．They’re twelve. （
4．We can’t see any boys and girls. （
5．Their teacher is Mr Li. （
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
