搜索
（1）We call it a kid .
（2）These are kids .
（3）We can call it a bird .
（4）That is a hen .
（5）She is from China .
（6）I’m in Class Two .
（7）They have two maths classes a week .
（8）I have three friends in my school .
（9）The boys have ten kittens in the room .
（10）They often sing in the club .
（11）I have one maths lesson on Monday .
（12）We often sing and dance in the music club .
（13）We study plants and animals in the science corner .
（14）They play football in the school .
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
