(1)A.a pair of socks B.a pair of jeans C.a pair of shoes
(2)A.twenty cats B.twelve vests C.thirty cars
(3)A.six thirty B.thirty six C.three thirty
(4)A.forty B.fifty C.fourteen
(5)A.pair B.bear C.here
(6)A.lunch B.night C.long
(7)A.small B.all C.tall
(8)A.like B.bike C.kite
(9)A.draw B.door C.doll
(10)A.sorts B.socks C.shoes
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