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Mike and John are good friends. But they are not in the same classroom. Mike’s classroom is on the first floor. John’s classroom is on the second floor. It’s 9 o’clock. Mike is in the computer room. John is in the art room. It’s time for lunch. They are eating noodles in the canteen. The canteen is very big. Now it’s 4 o’clock. It’s time to go home, but they are playing football on the playground. It is cool and sunny. They are happy.
1．Mike and John are good friends.2．It’s 9 o’clock. They are in the same classroom.
3．The canteen is not small.
4．It is cool and windy.
5．They are playing basketball on the playground.
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
