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Mr Black has two cats. One is big and the other is small. He likes them very much. One day, his friend Mr Green came to see him. Mr Green opens his eyes wide and is confused. He finds there are two holes (洞) in the door; a big hole and a small one. He says, “Why are there two holes in your door?”
“To let my cats in or out.” Mr Black answers.
“Why not one?” asks his friend.
“Can the big cat go through the small hole?” Mr Black says.
1．Mr Black has ________ cats. ( )| A．one | B．two | C．three |
| A．keys | B．pictures | C．holes |
| A．friend | B．brother | C．workmate |
| A．big, small | B．small, big | C．fat, big |
| A．happy | B．scared | C．confused |
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
