( )1.A.in B.shelf C.on
( )2.A.project B.wrong C.heavy
( )3.A.CD B.book C.dear
( )4.A.dictionary B.card C.go
( )5.A.send B.film C.ask
( )6.A.maths B.Chinese C.do
( )7.A.e-book B.e-card C.teacher
( )8.A.animal B.find C.get
( )9.A.film B.want C.dictionary
( )10.A.topic B.where C.what
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