【简答题】a = b = c = d = e = e = (a + b) * c / d (, e)
e = ((a + b) * c) / d (, e)
e = (a + b) * (c / d) (, e)
e = a + (b * c) / d (, e)A. (a + b) * c / d 运算结果为: 50.0 ((a + b) * c) / d...
【单选题】设 D= 为有向图, V={a, b, c, d, e, f}, E={, , , , } 是( )
【简答题】a b c d e e (a b) c d (, e)
e ((a b) c) d (, e)
e (a b) (c d) (, e)
e a (b c) d (, e)A. (a + b) * c / d 运算结果为: 90.0 ((a + b) * c) / d 运算结果为: 90.0 (a + b) * (c / d) 运算结果为: 90.0...
【简答题】X=
{a, b, c, d, e}, A= {a, b, c, d}, R=
{(a, a), (b, b), (c, c), (d, d), (e, e), (a, b), (d, c), (b, c ), (a,
c), (e, b), (a, d), (e, d), (e, a), (e, c)}, 求(X,R)的coverA. Cover={ ( a, b), (b, c), ( a, ...