Bob goes to the Children's Palace every day _____ Sunday. Every Sunday he helps at the Old People's Home. [ ]

A. on

B. in

C. during

D. except

党的（）把党在长期奋斗中形成的优良作风概括为理论和实践相结合的作风，和人民群众紧密联系在一起的作风以及自我批评的作风。

A.六大

B.七大

C.延安整风运动