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A long time ago, people lived happily under the rule of a king. The people of the kingdom were very happy as they led a very happy life with wealth and no misfortunes.
Once, the king decided to go visiting historical places and pilgrim (朝圣者) centres at distant places. He decided to travel on foot to interact with his people.
People of distant places were very happy to have a conversation with their king. They were proud that their king had a kind heart.
After several weeks of travel, the king returned to the palace. He was quite happy that he had visited many pilgrim centres and seen his people leading a happy life.
However, he had one regret. He had great pain in his feet as it was his first trip on foot covering a long distance. He complained to his ministers that the roads weren’t comfortable and that they were very stony. He could not stand the pain. He said that he was very worried about the people who had to walk along those roads as it would be painful for them, too!
Considering all this, he ordered his servants to cover the roads in the whole country with leather (皮革) so that the people of his kingdom could walk comfortably.
The king’s ministers were surprised to hear his order as it would mean that thousands of cows would have to be killed in order to get a large quantity of leather. And it would also cost a huge amount of money.
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Finally, a wise man from the ministry came to the king and said that he had another idea.
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Many of us dislike the world for many things.
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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
