搜索
( ) 1.A. jump B. umbrella C. run
( ) 2.A. come B. some C. woman
( ) 3.A. cry B. baby C. try
( ) 4.A. it B. picture C. little
( ) 5.A. shop B. postcard C. home
( ) 6.A. ask B. fast C. father
( ) 7.A. tea B. great C. eat
( ) 8.A. walked B. talked C. wanted
( ) 9.A. brother B. father C. mother
( ) 10.A. window B. slow C. how
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
