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It is Sunday today. Lots of people are playing in the park. Look! Some boys are playing football in the playground(操场). Some boys are swimming in the lake. Look at the girls on the lake, they are rowing a boat. Look at the boys under the tree, they are playing chess. Two little kids are reading a picture book on the chair.
A.
B. 
C. 
D. 
E. 
People | Activities(活动) |
the boys in the playground | |
the boys in the lake | |
the girls on the lake | |
the boys under the tree | |
the kids on the chair |
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
