设备工程进度计划的实施中，动态进度控制采用PDCA动态循环过程，D的含义是( )。
A．实施
B．纠偏
C．计划
D．检查
参考答案：A
For his eleventh birthday, Elvis wanted a bicycle but a guitar by his parents.[ ]
A. gave
B. was given
C. gives
D. has been given
光纤接续，一般应在不低于（）℃条件下进行。
A.5
B.0
C.-5
D.-10
