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I was only nine years old when I learnt how to use a computer. My mother is my first teacher. I know how to type and how to visit a web site on the Internet. One day, mum was not at home. I turned on the computer and began to learn how to chat on net. The first one I met there was a boy called Tom. He greeted me politely. When he knew that I was only a 9-year-old girl and almost knew nothing about chatting on net, he started showing me how to use the chatting tools, how to download, and how to send e-mails. I learnt a lot from him.
1．How did the girl learn?2．Who teaches the girl how to type?
3．How old was the girl?
4．What did the girl learn on the Internet?
5．Was Tom polite?
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
