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Aki: Happy birthday, Ben. This is for you.
Ben: Thank you. Oh, a robot. What can the robot do?
Aki: It can cook. It can clean your houses. It can drive a car and it can help sick people.
Ben: That’s great. Can it do my homework for me?
Aki: Yes, it can. But it does not want to help you to do your homework.
Ben: Sorry!
1．Ben gets a _______ from Aki. ( )
| A．robot | B．flower |
| A．swim | B．cook |
| A．drive a car | B．do Ben’s homework |
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
