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【单选题】
下面对于广域网接入技术说法中，错误的是( )。A.
电话拨号接入一定要“猫”
B.
FTTx+ETTH上网速度最快
C.
目前ADSL 是接入因特网的主要方式之一
D.
Cable MODEM上网不仅速度快而且数据传输速率稳定
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举一反三
【单选题】- _____ do you learn English, Zhao Wei? - By listening to tapes and doing more speaking. [ ]
A.
What
B.
When
C.
Why
D.
How
【单选题】油品中各种烃类的黏度大小排列顺序为( )
A.
正构烷烃＜环烷烃＜芳香烃＜异构烷烃
B.
环烷烃＜异构烷烃＜芳香烃＜正构烷烃
C.
正构烷烃＜异构烷烃＜芳香烃＜环烷烃
D.
环烷烃＜芳香烃＜正构烷烃＜异构烷烃
【多选题】Which two statements about DS-Lite are true？（）
A.
IPv4 packets are carried over IPv6 tunnels to the LSN while IPv6 traffic is forwarded natively.
B.
Ipv6 packets are carried over IPv4 tunnels to the LSN while IPv4 traffic is forwards natively.
C.
The LSN performs NAT44 on private IPv4 source addresses.
D.
DS-Lite does not perform any address translation.
【简答题】完成对话。 Wei Fang: Hi! Do you want to 1 English 2 me? Tom: Certainly. Wei Fang: What time do you get up 3 weekdays? At seven? Tom: No. That’s too _ 4 _. I get up at six o’clock. Wei Fang: Oh! But I get u...
【单选题】—What do you think of the movie by Zhao Wei? —Terrific. I like ______ very much.
A.
it
B.
him
C.
her
D.
you
【单选题】如果发动机长期燃油修正显示的是低于0%的负值,则表明:
A.
混合气过浓,喷油量正在减少(喷油脉宽减小)
B.
混合气过稀,ECU正在通过增加供油量(喷油脉宽增大)进行补偿
C.
短期燃油修正已经失效
D.
点火能量不足
【单选题】—Lin Tao, do you want to visit the Great Wall, _______? —Sure, Wen Wei ______ wants to.
A.
also; too
B.
too; too
C.
too; also
【简答题】The ________ of the book is Karry Smith.
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