微行为 | 微评价 |
坚决阻止要饮酒开车的爸爸 | ①有法律意识、安全意识 |
春游时男生帮女生提行李 | ②为避嫌,女生应拒绝男生的帮助 |
疫情期间在家上网课时:边玩游戏边听课 | ③不珍惜受教育权利,学习不专心 |
考试期间拒绝传递答案 | ④面对是非能够做出正确选择 |
A.①②③ | B.①②④ | C.②③④ | D.①③④ |
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