系统提供了以月为单位的账单显示或打印功能读卡或手动输入卡号，或者填写客户编号，进入查询账单页，可选择账单类型和账单月份，查询账单并导出。
参考答案：对
Software engineering is the science and art of specifying, designing, implementing, and (66) with economy, timeliness and elegance, programs, (67) and operating procedures whereby computers can be made useful to humanity.
This definition implicitly sets (68) the basic goal of software engineering research and development: The basic goal of software engineering is to facilitate specification, design, implementation and evolution of programs, documentation and operating (69) which are useful to humanity in an economic, (70) and elegant manner (using the appropriate science and art).
（68）处填（）。
A．out
B．in
C．of
D．with
级配砾石或者满足要求的天然砂砾作为路面基层时，应控制其( )。
A．压实度和含水量
B．CBR值和含水量
C．压实度和弯拉应力
D．压实度和CBR值
