(____) 1. A. pig B. dog C. nose D. sheep
(____) 2. A. orange B. apple C. lemon D. see
(____) 3. A. hear B. see C. draw D. paper
(____) 4. A. oink B. quack C. cluck D. chick
(____) 5. A. nose B. eye C. ear D. pen
(____) 6. A. zoo B. farm C. pig D. park
(____) 7. A. egg B. cow C. chick D. hen
(____) 8. A. pen B. pencil C. paper D. ground
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