( ) (1)A. doll B. dog C. doctor
( ) (2)A. matter B. mother C. monkey
( ) (3)A. bike B. kite C. car
( ) (4)A. 5:15 B. 5:50 C. 5:05
( ) (5)A. coat B. cold C. copy
( ) (6)A. write B. white C. what
( ) (7)A. blue B. balloon C. bird
( ) (8)A. perhaps B. puzzle C. puppet
( ) (9)A. shorts B. shoes C. socks
( )(10)A. thirty B. thirteen C. thirsty
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