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Last Sunday Jim went to the supermarket with his father and his mother. There were a lot of people there. Jim’s father wanted to buy a radio (收音机) for Jim’s grandparents. But they didn’t find a radio. So they bought a recorder (录音机) at last (最后). Jim’s mother bought some vegetables. They were very fresh (新鲜的). Jim’s mother also bought some noodles. Jim needs some school things (学习用品). And he bought some. They all had a good day.
1．Jim went to the2．Jim’s father wanted to buy a radio
3．Jim’s mother
4．Jim needs some school
5．They all had a
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
