搜索
（1）A. books B. box C. bookcase
（2）A. shorts B. socks C. shoes
（3）A. what B. white C. water
（4）A. three B. there C. here
（5）A. his B. he’s C. he
（6）A. hungry B. hundred C. hamburger
（7）A. rabbit B. ruler C. rubber
（8）A. thirty B. thirsty C. thirteen
（9）A. 3:25 B. 3:15 C. 3:50
（10）A. dog B. doll. C. ball
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
