搜索
A There isn’t a computer on Miss Li’s desk.
B There are 46 students in my class.
C there are 20 students in a class.
D That’s not right.
E there’s a blackboard and there are 22 desks.
A：In our school, . In my classroom, .
B： . That’s 24 boys and 22 girls. No, .
There are 25 boys and 21 girls. There are 48 desks.
A：Are there any computers on your desks? Is there a computer on miss Li’s desk?
B：No, . And there aren’t any computers on our desk..
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
