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（ ）1.
A.Go to the playground.Play football.
B.Go to the garden.Water the flowers.
（ ）2.
A.This is our art room.
B.This is our computer room.
（ ）3.
A.We have an art room.
B.We have a music room.
（ ）4.
A.Go to the library. Read a book.
B.Go to the teachers’ office. Say hello.
（ ）5.
A.It’s on the first floor.
B.It’s on the second floor.
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
