Mum: Look at your room. Put the books on the desk.
Danny: OK.
Mum: How many books?
Danny: Five books.
Mum: What colour?
Danny: Two are blue. Three are red.
Mum: Put the pencils in the pencil case.
Danny: OK.
Mum: Put the pencil case in the bag.
Danny: OK.
1.The books are in the desk.(
2.I can see five books. (
3.The books are not green. (
4.The pencils are not in the pencil case. (
5.The pencil case is in the bag. (
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