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Hello, I’m Jin. I have a good friend. His name is Sam. Sam lives in a village. In his village, there are some tall buildings. There is a bridge and a river in his village, too. You can see some ducks on the river. They can swim very fast. Behind his village, there is a forest. There is a hill in it. Sam and I often go and play there.
（ ）1.Sam lives in a village.
（ ）2.There are some small houses in Sam’s village.
（ ）3. You can see a bridge and a river in the village.
（ ）4. The ducks on the river can swim very fast.
（ ）5. There is a hill in front of the village.
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
