Sam likes taking pictures. Look at these pictures. This is his father. He's flying a kite. This is his mother. She's eating bananas. This is his grandma. She's sleeping. And this is his sister Amy. She's riding a bike. Look, that's his little brother. He's playing with his toy panda.
1.Sam's father is flying a kite. (____)2.Sam is taking pictures. (____)
3.Amy is riding a bike. (____)
4.Sam's mother is sleeping. (____)
5.Sam's little brother is playing with his toy car. (____)
6.His grandma is reading a book. (____)
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