(1)A.pair B.pear C.peach
(2)A.there B.their C.they're
(3)A.your B.too C.two
(4)A.way B.day C.may
(5)A.box B.books C.book
(6)A.teacher B.doctor C.worker
(7)A.goes B.gets C.get
(8)A.teacher's B.teachers C.teachers'
(9)A.leaf B.leaves C.lives
(10)A.rain B.ray C.rainbow
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