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There are many kangaroos in Australia and they are not only in zoos. You can see them everywhere in the towns. Kangaroos have very strong legs, so they are very good at jumping. Their tails are very strong, too. So when they want to have a rest (休息), they rest on their tails. Kangaroos are also very good at looking their babies. They eat grass, leaves and roots. Mother Kangaroos keep their babies safe in their pockets.
1．There are many kangaroos in ________. ( )| A．China | B．Australia | C．America |
| A．jumping | B．dancing | C．running |
| A．with their legs | B．on their tails | C．with their feet |
| A．Mother kangaroos | B．Father kangaroos | C．Brother kangaroos |
| A．grass | B．leaves and roots | C．A and B |
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
