(____) 1. A. six B. eye C. nine
(____) 2. A. long B. tall C. bridge
(____) 3. A. will B. new C. old
(____) 4. A. park B. school C. river
(____) 5. A. red B. sky C. blue
(____) 6. A. book B. wheel C. pen
(____) 7. A. one B. this C. that
(____) 8. A. like B. make C. small
(____) 9. A. his B. at C. my
(____) 10. A. London B. Parrot C. China
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