(1)A.balloon B.ball pen C.football
(2)A.tape B.cap C.take
(3)A.puzzle B.puppet C.purse
(4)A.kite B.like C.bike
(5)A.panda B.pen C.pencil
(6)A.bus B.but C.buy
(7)A.pear B.bear C.banana
(8)A.story B.school C.study
(9)A.blue B.balloon C.bottle
(10)A.door B.ball C.doll
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