【单选题】根据担保业务性质的不同,海关依法收取的担保资金分为保证金、风险保证金和抵押金 3种。下列选项中,属于风险担保金的是( )。
B.
对无法或者不变扣留的货物、物品或者运输工具收取的担保资金
C.
海关尚未确定商品归类、完税价格等征税要件而收取的担保资金
【单选题】A technician needs to add network capacity. However, when plugging a second switch into the first switch, there is no link light. Which of the following is the cause of this situation?()
A.
The switches are not stackable
B.
The cable was not wired using 568A
C.
The cable needs to be a crossover cable
D.
The switches have IGMP snooping enabled
【单选题】三相对称电路中,三相对称负载作星形连接时,线电流与相电流的关系是()。
【单选题】I live in a faraway village. There is no wireless network or telephone signals. I am a farmer. I work hard, but I only get 2000 dollars a year. If I want to contact my friends in Shanghai, I will ____...
【单选题】第一台电子计算机的运算速度只有每秒 ( ) 次
【单选题】三相对称电路中,三相对称负载作星形连接时,线电流与相电流的关系是( )。