对于光缆分类代号以及意义说法错误的是()。
A.GY--通信用是外光缆
B.GJ--通信用软光缆
C.GT--通信用特种光缆
D.GS-通信用设备内光缆
参考答案:B
、已知一次函数y=kx—2,请你补充一个条件 ,使y随x的增大而减少。
How did it come ______ that you made a lot of mistakes in your homework
A. about B. along C. around D. by