依据《中国电信LTE无线网络厂家网管技术要求》,网管系统的全指标测M周期应能支持缺省默认()分钟。
A.1
B.15
C.30
D.60
参考答案:B
---You are devoted herself_____ to her research and it earned her a good reputation in her field.
A.strongly
B.extremely
C.entirely
D.freely
19.He says he really can’t _____ to wait another day.
A.waste
B.afford
C.spare
D.Pay