搜索
It's a fine (晴朗的) day. Jack, Yan Shuo and Song Tao are in the park. They are having a picnic (野餐). Jack has seven pies, five sweets and some grapes. Yan Shuo has six pies and a pineapple. Song Tao doesn't have any fruit. But he has a pizza (披萨). It's twelve o'clock. Time for lunch. They are making a fruit salad near the river. What a nice day!
1．Yan Shuo and his friends are in the zoo.2．Song Tao doesn't have any fruit.
3．Jack has some food and fruit.
4．They have fourteen pies.
5．They have dinner in the zoo.
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
