ZF浮选剂具有（）功能。

A.抑制剂

B.捕收剂

C.起泡剂

D.絮凝剂

E.活化剂

Martian Brother is the nickname for a boy called Hua Chenyu          won the 2013 Supei Boy．

A．who

B．which

C．whose

D．what