【正文】
up policy in the late 1970s, China has enjoyed an average annual growth rate of % in its service sector. 3. The reform and openup policy, introduced in the late 1970s has given China’s service sector an average annual growth rate of %. 4. The introduction of the reform and openup policy in the late 1970s has given China’s service sector an average annual growth rate of %. 5. An average annual growth rate of % has been achieved in China’s service sector since the introduction of the reform and openup policy in the late 1970s. Thank You !