搜索
| | Thirty years ago | Now |
| do shopping | in the shop | on the Internet |
| make friends | send letters | write emails |
| call people | use the telephone | use the mobile phone |
| get news | read the newspaper | surf the Internet |
1．Mrs Brown bought things ______ thirty years ago. ( )
| A．from the shop | B．on the Internet | C．from the computer |
| A．the telephone | B．the mobile phone | C．the radio |
| A．reads a newspaper | B．reads a book | C．surfs the Internet |
| A．write emails | B．write words | C．send letters |
| A．True. | B．False. | C．I don’t know. |
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
