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Candy and Mike are in the zoo（动物园）. There are many animals（动物）in the zoo. There are four birds in the sky（空中）. They are brown. There are two ducks on the lake（湖）. They are white. There are many fish too. They can swim, but they can't walk. Candy can sing. She sings in the zoo. Mike can draw. But he can't sing. They are very happy in the zoo.
1．—How many ducks are there on the lake? ( )—There are ___________.
| A．two | B．four. | C．five |
—They are ___________. ( )
| A．white | B．yellow | C．brown |
| A．The fish | B．The ducks | C．The birds |
—He can ___________.
| A．sing | B．draw | C．dance |
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
