It is a snowy day. Snow is white and beautiful! Mr. Snowman, Mrs. Snowman and Boy Snowman are in the forest. They play with snowballs. Then Mr. Snowman teaches Boy Snowman to skate on the ice. Boy Snowman says, “I think I can stand up.” “See? I did it!” Mrs. Snowman says, “Good boy! Winter is fun. We can play in the snow and we can skate. Do you love winter?” “Sure!” says Boy Snowman.
1.This is a rainy day. (2.There are Mr. Snowman, Mrs. Snowman and Boy Snowman in the forest. (
3.Mr. Snowman teaches Boy Snowman to swim. (
4.Boy Snowman can stand up on the ice. (
5.The Boy Snowman doesn’t like winter. (
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