搜索
Every day, Mr Black sees a tall man near his home. The man has a pair of sunglasses and sits on the ground. In front of the man, there is a hat with some money in it. Beside the man, there is a dog. Around the dog’s neck, there is aboard. It says, “I’m blind.” Mr Black gives the man some money every afternoon on his way home. One day, Mr Smith walks by the man, but he does not give him any money.
“Why don’t you give me money today?” The man asks.
Mr Black is very surprised (惊奇的) . “Aren’t you a blind man?” He asks.
“No, I’m not. But my dog is blind.” The man says.
1．Mr Black is a blind man.2．There is a tall man near his home.
3．We can’t see any money in the hat.
4．Mr Black never (从不) gives money to the man.
5．The dog is blind.
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
