我们搞电子政务就是要更好地、更公平地为社会公众服务，但数字鸿沟会使社会上的信息弱势群体，难以享受到这种服务，造成新的更大范围、更深层次的社会不公，所以我们要注重（）。

A.公平理念

B.系统理念

C.创新理念

D.安全理念

(A) 条件(1)充分，但条件(2)不充分．
(B) 条件(2)充分，但条件(1)不充分．
(C) 条件(1)和(2)单独都不充分，但条件(1)和条件(2)联合起来充分．
(D) 条件(1)充分，条件(2)也充分．
(E) 条件(1)和条件(2)单独都不充分，条件(1)和条件(2)联合起来也不充分．

Todd’s construction company is capable of building 40 houses a year. Todd’s brother Mike also owns a construction company. How long does it take the two companies together to build 64 houses
(1) Mike’s construction company is capable of building houses twice as fast as Todd’s company does.
(2) Mike’s construction company is capable of building 20 houses every three months.