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Many years ago, there was a family named Frankin. They lived in Boston, the US. There were five girls and six boys in the family. On a January day in 1706 another baby was born. The boy’s parents gave him a name—Benjamin. Benjamin was very cute. He could read when he was five and he could write when he was seven. When he was eight he went to school. He read his father’s books. He bought books with all his money. He liked books. He invented the paddles for swimming.
1．The Frankin family was in France.2．There were eleven children in the family.
3．Benjamin was born in the first month of the year 1706.
4．Benjamin loved reading books.
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
