凡是反映本机关主要职能活动和基本历史面貌的文件材料均应列为（）保管.
A、永久
B、长期
C、短期
参考答案：A
— With whom did you watch 2010 World Cup Opening Ceremony ?— _________.
A．A friend of mine
B．A friend of me
C．A friend of my sister
D．A friend of you
肺癌病人手术治疗是指
A．肺叶切除术
B．肺楔形切除术
C．肺段切除术
D．肺叶切除+肺萎陷疗法
E．肺叶切除术+淋巴结清扫术
