以下哪个元件是主板上的元件()
A.晶体管
B.二级缓存
C.PCB电路板
D.硅管
参考答案:C
Hiking by oneself can be fun and good for health. It may also be good for _____ building. [ ]
A. respect
B. friendship
C. reputation
D. character
票据和结算凭证的记载事项中,可以更改的内容是( )。
A.金额
B.用途
C.收款人名称
D.出票或者签发日期