There are ____ calls for lawmakers to consider copyright laws.
A、increase
B、increasing
C、increased

A.高效过滤器用于万级以上的洁净室、无菌病房、无菌灌装室、无菌动物房等净化空调
B.中效过滤器对微生物有很高的过滤效率
C.粗效过滤器用于新风过滤
D.中效过滤器用作高效过滤器的前级保护

A.A、celebrations
B、celebrities
C、celebrates