搜索
| An email to Robin |
| To: robin@urfriend. cn |
| From: jones@art. cn |
| Dec. 20th Dear Robin, I am Binbin’s art teacher. I just moved into an old house. The rooms are dirty. There are pencils and crayons on the floor. There are pictures and photos everywhere. Oh, no! I see a mouse behind my computer! Please help me. I live near the nature park. Please hurry! Mr Jones |
1．This is a(an) ____. ( )
| A．story | B．dialogue (对话) | C．email |
| A．Mr Jones; Robin | B．Robin; Mr Jones | C．Robin; Miss Jones |
| A．Sunday | B．Monday | C．Dec. 20th |
| A．English teacher | B．art teacher | C．music teacher |
| A．he needs (需要) Robin’s help | B．wants to play with Robin |
| C．wants to go to the nature park. | |
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
