(_____) 1. A. dog B. cat C. foot
(_____) 2. A. apple B. book C. pencil
(_____) 3. A. eraser B. pear C. banana
(_____) 4. A. school B. classroom C. door
(_____) 5. A. grape B. orange C. sweet
(_____) 6. A. notebook B. crayon C. pineapple
(_____) 7. A. sweet B. notebook C. glue
(_____) 8. A. football B. basketball C. run
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