单项选择题
四阶行列式的值等于()。
A.a1a2a3a4-b1b2b3b4 B.a1a2a3a4+b1b2b3b4 C.(a1a2-b1b2)(a3a4-b3b4) D.(a2a3-b2b3)(a1a4-b1b4)
A.2a B.-2a C.-3a D.3a
A.(A)B.(B)C.(C)D.(D)