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This is a picture of my family. We are in the park. My father and grandpa are playing chess. My mother is listening to music. My grandma is doing Taijiquan. Look at me and my sister! We are flying kites.
Love Daming
1．Who writes the letter? ( )| A．Daming. | B．Sam. |
| A．Daming. | B．Sam. |
—They are _______.
| A．doing Taijiquan | B．playing chess |
—She is _______.
| A．listening to music | B．playing chess |
—They are _______.
| A．drawing pictures | B．flying kites |
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
