Just in front of our house ______ with a history of 1000 years.

A．does a tall tree stand

B．stands a tall tree

C．a tall tree is standing

D．a tall tree stands

地面气象观测员应经过系统业务技术培训，参加业务主管部门定期组织的考核，取得地级或以上业务主管部门认定的岗位资格。