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1．Where are the Greens? ( )
| A．In the park | B．In the library | C．In the sitting room |
—They are ________.
| A．watching TV | B．reading books | C．listening to the radio |
| A．Mr. Green | B．Mrs. Green | C．Danny |
| A．Mr. Green | B．Danny | C．Mrs. Green |
| A．A dog. | B．A tiger | C．A lion |
| A．A glass | B．A book | C．A magazine |
— It is ______ the sofa.
| A．in front of | B．behind | C．on |
| A．Some flowers | B．Some cats | C．Some benches |
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
