对于大型的建筑，传输距离长，为了尽可能的减少传输损耗，采用光纤传输信号，光纤的传输损耗是2dB/1000m，此外光纤重量轻，体积小便于施工。
正确
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You’dbetterletmeknowassoonasthereisa(n)____positioninthebranchoffice.
PartIVTranslation：
I’mnotagainstusingbigwords,whenitisrighttodoso,butIhavealsolearnedthatasmallwordcanworkasmallmiracle—ifit’srightword,intherightplace,attherighttime.(PassageFour)
PartVWriting
Directions:Inthispart,youarerequiredtowriteanessayaboutWhatMakesaGoodUniversity.Youshouldwriteatleast120wordsandbaseyourcompositionontheoutline(giveninChinese)below:
1、选择好的大学很重要;
2、在我看来，好的大学应该是……