Computer hardware engineers research, design, develop, and test computer hardware and supervise its manufacture and (73) . Hardware refers to computer (74) , circuit boards, computer systems, and related equipment such as keyboards, modems, and printers.

A．chips

B．frame

C．structure

D．cell

由于疏于______，院里的房屋大多十分陈旧，与旁边修建得簇新的正乙祠戏楼相比要______得多，不过在院中我们依稀还可以看到正乙祠当年的身影。
填入划横线部分最恰当的一项是______。

A．修饰 寒酸
B．修葺 逊色
C．管理 破败
D．维护 杂乱