当作者与主要受文者存在不相隶属关系时,只能选取()。
A.上行文
B.平行文
C.下行文
D.公布性文件
参考答案:B
- You seem to be familiar with this city.
- I_______ here for three years. It's great to be back.
A.have lived
B.lived
C.had lived
D.live
加强对全体施工人员教育和培训,包括当地法律、人文、环境、专业技能、安全技能的培训。