A.氯化氢由分子构成,则氯化钠也由分子构成 |
B.铁器在空气中易腐蚀,则铝制品在空气中也易腐蚀 |
C.氢氧化钠溶液能使酚酞溶液变红,则氢氧化钙溶液也能使酚酞溶液变红 |
D.锌片放入稀硫酸中产生氢气,则铜片放入稀硫酸中也产生氢气 |
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