【单选题】CSMA/CD中的CSMA代表() 。
A.
Carrier Sense Media Access
B.
Carrier Sense Multiple Access
C.
Copper System Multiple Access
D.
Copper System Media Access
【简答题】Second tyoe: ticket that don't include a reservation -Valid for a ________ route -Used to board any train on its route without a reservation -Any ________seat of specific class can be seated Three way...
【判断题】After the reservation, Paul and his friends can be seated immediately if they get to the restaurant at 8:30.
【单选题】无霜期是指( )这一阶段之间的日期。
C.
秋季第一次出现霜冻到第二年春季最后一次出现霜冻
D.
上半年第一次出现霜冻到下半年最后一次出现霜冻
【判断题】When providing booth service, you can be seated while talking to the visitors.
【多选题】产品质量保证保险被保险人承担的是( )的责任。