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Daming and his friend Mary are in a park now. They see many people in the park. Some are doing Taijiquan. Some are rowing a dragon boat. Others are playing chess. Look ! There are some children over there. The boys are playing football, the girls are drinking soya milk. They are having a good time.
(1)— Where is Daming and his friend?
—________
(2)— Are there many people in the park?
— ________
(3)— Are there any people doing Tajiquan in the park?
— ________
(4)— What are the girls doing?
—________
(5)— What are the boys doing?
—________
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
