求几个（ ）加数的和，用（ ）计算比较简便。
相同；乘法
A. That comes to 980$ altogether.B. Can you explain the items one by oneC. How would you like to pay your billD. May I have your name(Dialogue- 2)( C-cashier G-guest)
G: Could I have my bill, pleaseC: Certainly, sir. ________
在设备所支持的工作模式中，进行自动协商优先级最高的是（）
