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This is my room. There is a bag on the desk. There are five books in the bag. There is a chair under the desk. There are two balls on the floor. There are three dolls on my bed. There is a cat under the bed.
1．There is a________ on the desk. ( )| A．pencil | B．book | C．bag |
| A．3 | B．4 | C．5 |
| A．two balls | B．two dogs | C．two dolls |
| A．3 | B．4 | C．5 |
| A．dog | B．doll | C．cat |
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
