The valve has a manual override lever that also functions as a mechanical position indicator.In the above sentence,"functions as" means
A.调节;
B.起...的作用;
C.滑动;
D.与..相对应;
正确答案是B
The valve has a manual override lever that also functions as a mechanical position indicator.In the above sentence,"functions as" means
A.调节;
B.起...的作用;
C.滑动;
D.与..相对应;
正确答案是B