(1)go to the canteen a 吃面条
(2)hand in the homework b 踢足球
(3)water the flowers c 去食堂
(4)play football d 唱歌跳舞
(5)eat some noodles e 浇花
(6)a lot of fun f 挂毛衣
(7)sing and dance g 读读写写
(8)take off your jacket h 很有趣
(9)hang up your sweater i 脱夹克
(10)read and write j 交作业
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