搜索
Volunteer Recruitment(志愿者招募)
①COVID-19 detection(检测) | ②Carrying food | ③Caring(照顾) for animals | |
Age | 18+ | 18+ | 12+ |
Sex | Female or male(男性) | Male | Boy or girl |
Career | Doctor or nurse | Unlimited(无限制) | unlimited |
| A．Team 1. | B．Team 2. | C．Team 3. |
| A．No, he can’t. | B．Yes, he can. | C．Sorry, I’m not sure. |
| A．Yes, he can. | B．No, he can’t. | C．I don’t know. |
| A．男性 | B．女性 | C．不限 |
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
