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Lin Tao: This is our school.
Tim: 1.
Lin Tao: There are 47 classrooms.
Tim: 2.
Lin Tao: There are 123 teachers.
Tim: 3.
Lin Tao: There are 43.
Tim: 4.
Lin Tao: There are 20.
Tim: Wow. 5.
| A. How many children are there in your class? B. How many teachers are there in your school? C. How many classrooms are there in your school? D. You've got more friends in your class. E. How many boys are there in your class? |
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
