1／你好,我已经收到您的信件,麻烦您将损坏的物品拍下照片发邮件给我,如果的确是运输过程导致物品破损,我表示深深的歉意并会尽快重新寄过新的物品给您.等待你的回音． hi,I have received your letter.please help to take some photos of the damaged goods and mail to me.I am very sorry if it is truly damaged during the transportation,and I will send the new parts to you as soon as possible,looking forward to your reply,thanks a lot! 2／真的很抱歉您到现在还没收到物品，请再多等两天，如果仍未收到请告知我，我将重新寄过新的物品给您，或者退全款给您，非常抱歉． I am very sorry you don't still recieve the good,please wait more two days.and tell me if you don't receive it after waiting more two days,I will resend new goods to you or return your all refund.sorry for any inconvenient caused.

1比特在最初的802.3标准里面是多长？ 用10Mbps的数据传输速率而且在同轴电缆的信号传输速度是真空中光的速度的2/3. 是关于网络技术的吧.