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One day, a monkey walked to a lake. Suddenly(突然), he saw a tiger under a tree. The tiger saw him, too. The tiger ran very fast after the monkey. He wanted to eat the monkey. The monkey was very afraid and he fell into the lake. The monkey couldn’t swim(游泳) and he shouted(喊叫), “Help! Help!” A dog came and he jumped into the lake. The dog swam(游泳) to the monkey but he could not help him. Both of them shouted for help. Luckily, a giraffe(长颈鹿) came along. He was very tall. He helped the dog and the monkey.
1．The monkey walked to ______. ( )| A．a lake | B．a tree | C．the zoo |
| A．on | B．under | C．in |
| A．help | B．eat | C．play with |
| A．A dog | B．A horse | C．A tiger |
| A．The tiger | B．The monkey | C．The giraffe |
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
