----How is she getting along with her workmates?

-----Quite well. She is very_____ to other people’s feelings.

A．Active

B．simple

C．sensible

D．sensitive

夹套换热器的优点是结构简单、制造方便，其缺点是（）。

A.传热面积有限

B.传热系数低，即传热阻力大

C.A、B的综合

D.造价高