IP 数据报在穿越因特网过程中有可能被分片。在 IP 数据报分片以后,通常由以下哪种设备进行重组?
A.源主机
B.目的主机
C.转发路由器
D.转发交换机
参考答案:B
–Who is Jerry?
–_____? I saw you shaking hands with him at the meeting,
A.Don’t you meet him yet
B.Hadn’t you met him yet
C.Didn’t you meet him yet
D.Haven’t you met him yet
B型超声检查从妊娠22周起胎儿双顶径每周约增加:
A.0.1cm
B.0.12cm
C.0.20cm
D.0.22cm
E.0.25cm