A.line quality
B.distance from the CO
C.brand of xDSL modem
D.number of twisted-pair wires used
第1题:
What's ( )job? Are ( ) British?
A. your, your
B. you, your
C. your, you
第2题:
A.no-amedia_speed=100_Full_Duplexen0
B.ifconfig-amedia_speed=100_Full_Duplexent0
C.chdev-lent0-amedia_speed=100_Full_Duplex
D.chinet-len0-amedia_speed=100_Full_Duplexen0
第3题:
DSL技术的种基本类型是什么?
A、上行DSL和下行DSL;
B、xDSL和yDSL;
C、非对称DSL和对称DSL;
D、以上都不正确;
第4题:
The upper piston rings m large, slow-speed, two-stroke/cycle diesel engines are most effectively lubricated by oil ____.
A.fed from mechanical lubricators
B.thrown off from the main bearings
C.supplied from wick fed drip lubricators
D.flow from a centrifugal or banjo oiler
第5题:
( ) – Is Miss White __________ English teacher, Maria?
– No, she teaches __________ geography.
A.your;my
B.you;mine
C.you;us
D.your;us
第6题:
According to Skinner, language behavior can only be studied through observation of the()factors.
external
略