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John and Sarah are good friends. John has short hair. Sarah has long hair. They have a new classroom. Look! One blackboard, one TV, two doors, many desks and chairs. The TV is big. The doors are orange. The desks are green. The TV is near the door. There are many pictures on the wall. The new classroom is very nice. They all (都)like it.
1．John is Sarah's friend.（2．John has long hair.（
3．One blackboard, one TV, two doors, many desks and chairs in the new classroom.（
4．They like their classroom.（
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
