---Your shirt looks very nice on you.

---Thanks. It is the first one that has fitted me____, I think.

A completely   B. hardly   C. carefully.   D. partly

气动薄膜调节阀，当信号增大时，阀杆（）称为正作用调节阀。

A.向下移动

B.向上移动

C.不动

D.脱离