功率表测量机构采用（）。
A、感应系仪表
B、电磁系仪表
C、磁电系仪表
D、电动系仪表
参考答案：D
She became a________customer of the bookshop.[ ]
A. considerate
B. regular
C. continuous
D. constant
监测成果包括哪些内容？
