【单选题】
8. He offered a reward to____ should restore the lost ring.
①
who
②
whom
③
whoever
④
whomever
【单选题】
8. Herson didnotseemto_____anyimportanceto what she had said.
①
stick
②
notice
③
attach
④
remind
【单选题】
8. Hong Kong is ______ the south of China, and Macao is ______ the west of Hong Kong.
①
in;to
②
to; to
③
to; in
④
in; in
【多选题】
关于争用期，说法正确的是（ ）
①
争用期和传输距离无关
②
往返时间就是争用期
③
10M以太网的争用期为51.2us
④
在争用期内没有检测到碰撞，那么后面也就不会发生碰撞。