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Hi, I’m Amy. Welcome to my new classroom. It’s not big but nice. We have a blackboard, a teacher’s desk, four lights and three fans. The computer is on the teacher’s desk. It’s white. A nice picture is on the green wall. It’s near the door. The door is yellow. You can see many desks and chairs in the classroom. Look! My desk is near the teacher’s desk. I like my classroom. What a nice and clean classroom!
1．The classroom is nice and big.2．There are(有) four lights and three desks in the classroom.
3．You can see a green wall in the classroom.
4．The teacher’s desk is near my desk.
5．The nice picture is near the green door.
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
