A. 去睡觉 B. 起床 C. 在家 D. 去商店 E. 吃早饭 F. 读书 G. 去游泳 H. 帮助妈妈 I. 踢足球 J. 看望奶奶 |
1.get up
2.go to bed
3.eat breakfast
4.at home
5.read a book
6.go to the store
7.help mom
8.go swimming
9.visit grandma
10.play 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