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Sam receives an e-mail from Amy. Here is the e-mail.
| To: Sam Subject: Birds home Hi Sam! My mum buys me some books about birds. I like birds very much. Now I know many birds live in trees. They make their nests there. They had their baby birds in the nests. Baby birds can’t fly with their parents. They just stay at home. Some birds make their nests on the roofs(屋檐) of the house. Chickens are birds. They usually live in chicken houses. Ducks are birds, too. Some ducks live on a farm and swim in the lake. But others live in the fields. What animal do you like? Please write and tell me about them. Best wishes, Amy |
| A．Sam. | B．Amy. | C．Amy’s mum. |
| A．Make their nests. | B．Stay at home. | C．Swim in the lake. |
| A．In chicken houses. | B．In the fields. | C．In trees. |
| A．In the lake. | B．On the roofs. | C．On a farm. |
| A．Birds home. | B．Trees. | C．Some ducks. |
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
