对于长期处于备用状态或现场检验时不满足检验条件的电能计量装置,经实际检测可计入实际检验数,但应填写现场检验记录,统计时视为不合格。
参考答案:错
The children planted more trees after they ________Greener China. [ ]
A. joined
B. took part in
C. became
D. were
关系数据库,实现表与表之间的联系是通过
A.实体完整性规则
B.参照完整性规则
C.用户定义的完整性
D.值域