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Today is Saturday. It is sunny and warm. I go on a trip with my parents. We are in a beautiful village. There are many tall trees and pretty flowers in it. There is a high mountain and a lake beside the village. On the lake, there are some boats. And there are many ducks on the lake. They are white.
1．Today is Sunday. （_____）2．The weather is cold. （_____）
3．I go on a trip with my friends. （_____）
4．There is a high mountain beside the village. （_____）
5．There are some boats on the lake. （_____）
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
