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Bob has summer holidays. He is going to visit his grandparents in Shanghai. He wants to give some presents to them. Yesterday he went shopping with his mother and father. In the shop, he bought a pair of blue shorts and a pair of black pants for his grandfather and some good books for his grandmother. Bob was very happy.
1．Where are Bob’s grandparents? ( )| A．In Beijing | B．In Shanghai | C．In Nanjing |
| A．Bob is going to visit his grandparents. |
| B．Bob went shopping with his friends. |
| C．He went shopping with his mother. |
| A．a shirt | B．Some apples | C．Some books |
| A．a sweater | B．Some apples. | C．a pair of blue shorts and a pair of black pants |
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
