fight hero catch grape have to cook noodles eat jiaozi be bad for brush one’s teeth come and help |
1.It’s twelve. Cinderella
2.Taotao, here’s some
3.Today is Tim’s birthday. His mum
4.Too many sweets
5.He has a toothache. He should
6.At the Spring Festival, some people
7.I’m not good at Maths. Yang Ling and Nancy often
8.The two dogs start
9.Zhong Nanshan is a
10.There are some pests in the garden. The farmer wants

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

