EPON下行采用()波长的光信号。
A、1310nm
B、1490nm
C、1550nm
D、1320nm
参考答案:B
住院处遇有危重患者办理手续时,正确的处置是()。
A.生命体征平稳后送入病区
B.立即护送患者入病区
C.迅速查阅病人医疗病历
D.询问既往病史、现病史
E.了解患者有何护理问题
.Although he had to spend lots of money for going to the ball,he accepted the invitation.
the ball was important to him.
A.After all
B.In all
C.First of all
D.Above all