A.t1℃时,甲、丙的饱和溶液,溶剂质量可能相等 |
B.t3℃时,等质量的甲、乙、丙的溶液,溶质的质量可能相等 |
C.将t3℃时甲、乙、丙的混合溶液降温至t1℃,析出的固体中可能只有乙 |
D.将t1℃时乙、丙的饱和溶液升温至t2℃,两种溶液中溶质的质量分数可能相等 |
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