(1)A.sea B.instead C.easy
(2)A.chopsticks B.chips C.idea
(3)A.elephant B.w et C.clever
(4)A.hamburger B.can C.make
(5)A.lovely B.shop C.worry
(6)A.shorts B.fork C.cold
(7)A.food B.cough C.cook
(8)A.Chinese B.teacher C.ill
(9)A.river B.feed C.rabbit
(10)A.letter B.pen C.headache
(11)A.make B.apple C.cat
(12)A.dog B.stone C.fox
(13)A.shop B.tall C.short
(14)A.book B.soup C.football
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