【单选题】在流量、速度、密度三者之间的关系式Q=KV中,V指
【单选题】One of the advantages of credit cards is that______.
A.
there are many kinds of credit cards
B.
they are not easy to lose
C.
they can be canceled after being stolen
D.
they are easy to carry with
【单选题】The cards that are wildly used now are credit.cards.
【单选题】在 ......中间 ; 在(三者或三者以上)之间
【单选题】在设计阶段,投资、质量、进度三者最重要的是( )
【单选题】-What are the people doing? -__________ [ ]
A.
These are playing cards.
B.
They are playing cards.
【判断题】Business cards are cards bearing business information about a company or individual.()
【单选题】Smart cards are like ______ cards.
C.
Interactive television