B. I’m going to fly a kite on Sunday afternoon.
C. I’m going to paint the kite on Saturday morning.
B. I am good at swimming but weak in drawing.
C. I am good at swimming and drawing.
B. There are many beautiful pictures in this book.
C. There are many wonderful photos in that magazine.
B. Tim is sitting behind a magic machine.
C. Jim is standing beside a beautiful machine.
B. I often sing and dance in the living room.
C. I sometimes draw and paint in my bedroom.
B. Please put your shoes under the bed.
C. Please put your socks in the box.
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