A.黑表毛搭f点,红表笔搭d点,电阻值约330Ω,表明V3损坏 |
B.黑表毛搭e点,红表笔搭c点,电阻值约3.3kΩ,表明V2损坏 |
C.黑表笔搭b点,红表笔搭d点,光线变化时指针摆动,表明V1损坏 |
D.黑表笔搭a点,红表笔搭d点,光线变化时指针摆动,表明Rg损坏 |
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