蒸汽动力设备循环广泛采用（）。
A、卡诺循环
B、朗肯循环
C、回热循环
参考答案：B
As teachers，we be considerate of our students’ feelings and appeal to them．Only in this way will they trust us.
A．would
B．should
C．ought
D．minght
对来本行进行卫生检查、抄水表、电表，或修理技防设施的有关人员怎么办？
