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Look at these photos. They are my daughter's. Her name is Alice. In this photo, she was only three months old. She could smile and cry. She couldn't do more things. Look at this one. She was one year old then. She could walk and say some simple words. At the age of two, she could run fast. She could talk fluently（流利地）. She could ride small tricycle（三轮车）. But she couldn't ride a bike. She couldn't read at the age of four. But she could learn, so she knew some words. She could ride bikes then. At the age of five, she could read books, but she couldn't write. She began to learn to swim. When she was six, she could write. And she could swim very well. Now she is seven. She goes to primary school. Is my daughter very clever?
1．Alice could say some simple words when she was three months old.2．Alice could walk at the age of one.
3．Alice could ride a bike at the age of two.
4．Alice could read at the age of five.
5．Alice couldn't swim when she was six.
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
