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Once upon a time, a wolf was lapping the water(舔水) at a spring(泉水) on a hillside. When he looked up, he saw a lamb drinking a little lower down. “There’s my supper,” he thought . “I will find some excuses to catch him.”Then he called out to the lamb, “How dare you smear(弄脏) the water I am drinking?”
“No,” said the lamb. “I cannot smear your water because the water runs down from you to me.”
“Well, then,” said the wolf. “Why did you call me bad names last year?”
“That couldn’t be,” said the lamb. “I was only six months old then.”
“I don’t care,” shouted the wolf. “If it was not you, it must be your father.” After that he rushed at the poor little lamb and ate it up.
1．This story is from a Chinese idiom book.2．The wolf wanted to make friends with the lamb.
3．The lamb couldn’t smear the water.
4．The lamb called the wolf bad names last year.
5．The lamb was six years old.
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
