Your desk is covered with too many unnecessary things, including used papers and books. You’d better ________ some of them.

A．remain

B．replace

C．remove

D．renew

彼得•圣吉提出的学习型组织的修炼技能之一是（）。

A.局部思考

B.单独学习

C.建立共同愿景

D.被动适应