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Long long ago, there really was a Santa, but his name was Saint Nicholas. There are many stories about him. He helped children and gave gifts to poor people. In North America, his name changed. People began to call him Santa. Santa is old and has white hair. Kids believe that Santa brings them gifts on Christmas. Santa lives in the North Pole. On Christmas Eve, Santa rides in a sleigh(雪橇). His reindeer(驯鹿) pull the sleigh and they fly in the sky. Santa comes into the house through the chimney(烟囱).
1．There really is a Santa now. （2．Saint Nicholas is Santa. （
3．Long long ago, Santa gave gifts to poor people. （
4．Santa lives in North America. （
5．Santa comes into the house through the chimney. （
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
