[[QOrDeR]]( )
A.We can see three signs. |
B.We can see four signs. |
C.We can see more than three signs. |
A.At seven o'clock. |
B.At six forty-five. |
C.At seven fifteen. |
A.Lucy is swimming with the other boys. |
B.Alice is running with the boys. |
C.Nancy is singing with the other boys in the classroom. |
A.He doesn’t know the old man over there. |
B.He knows her a little. |
C.He knows him a little. |
A.Yes,they are. |
B.No,they aren’t. |
C.Sorry,we don’t know. |
A.![]() | B.![]() | C.![]() |

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

