The role of active involvement in tourism development is that government intervenes in the sector as an investor， to provide infrastructure and supportive services including tourism policy and planning， human resource development， marketing， etc.。

According to the case posted in the discuss part of this chapter，"Top Ten Cooperation Plan" were announced by President Xi Jinping at the Johannesburg Summit of the China-Africa Cooperation Forum in 2015.。
A.正确
B.错误