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An old woman has a cat. The cat is very old. It can’t run fast and it can’t catch mice (mouse 的复数). When the old cat sees a mouse, it tries to catch it, but the mouse can always run away. The woman is very angry about it. But she likes the old cat. Then she has a good idea. She buys a young cat to catch mice. Now the old cat can run fast.
1．The old cat cannot ______ at first (最初，起初). ( )| A．catch dogs | B．jump on the mice | C．run fast or catch mice |
| A．it eats the mouse | B．the mouse runs away | C．it jumps on the mouse |
| A．very angry | B．very tired | C．very happy |
| A．doesn’t want the old cat | B．likes mice | C．buys a new cat |
| A．cats | B．mice | C．dogs |
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
