A.图A是一定温度下,向接近饱和的硝酸钾溶液中不断加入硝酸钾固体 |
B.图B是在某一密闭的装置内点燃白磷 |
C.图C是将等质量的Mg、Al分别与溶质质量分数相同的足量稀硫酸反应 |
D.图D是分别向相同的CuSO4溶液(足量)中加入质量相等的锌粉和铁粉 |
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