搜索
 Hurry up! Better Days will be on in 30 minutes. |
Don’t worry! We can go out and take a taxi there. |
| Oh, you’re out. We can use an app called Didi Chuxing, I 1． it to the taxi. |
Why do you like it better? Was it 2． by lots of people? |
| Yes, millions of users. We can order a car at home and check 3． the car is on the map. |
You mean we don’t need to go out to wait for the car 4． it is coming? |
| Right! And the 5． of Didi usually speak politely to the passengers. Because they are afraid to get bad words from them. |
Haha, they may get five stars if everything goes well. |
 Sure! Here comes our car! |
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
