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Today is September 2nd. It’s Lala’s birthday. Kate is making a birthday cake for Lala. But Lala doesn’t know. He is playing football with Maomao. It is so hot. After a while, they are tired, so they go back home. When Lala comes into the room, he sees the cake. He is surprised, and he doesn’t know who make the cake for him. But he eats it happily.
( ) 1. It’s Kate’s birthday today.
( ) 2. Kate is making a birthday cake for Maomao.
( ) 3. Lala and Maomao are playing football.
( ) 4. Lala is surprised when he sees the cake.
( ) 5. Lala knows Kate makes the cake for him.
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
