粒径在()的骨料为细骨料。
A.0.15~3.25mm
B.0.15~3.75mm
C.0.15~4.25mm
D.0.15~4.75mm
参考答案:D
________ I explained on the phone,your request will be considered at the next meeting.
A.When
B.After
C.As
D.Which
中兴S320设备光接口有误码状态下指示灯的闪烁状态为()
A、NOM绿灯长亮
B、NOM绿灯闪烁(1次/秒)
C、NOM绿灯闪烁(1次/秒)+TXn和RXn长亮
D、BNOM绿灯闪烁(1次/秒)+RXn闪烁