A.分别向等质量Mg和Cu中加入足量等质量、等浓度的稀硫酸 |
B.分别向等质量且足量的Zn中加入等质量、不同浓度的稀硫酸 |
C.分别向等质量且足量的Mg和Zn中加入等质量、等浓度的稀硫酸 |
D.分别向等质量的Mg和Zn中加入等质量、等浓度且足量的稀硫酸 |
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