China now aims to boost domestic demand, and this would help the global economy.
A. in short
B. on duty
C. on average
D. in turn
网友回答
A. in short
B. on duty
C. on average
(答案→)D. in turn
解析：考查介词短语辨析。A简言之；B值班；C评价；D依次，轮流；反过来；句意：中国现在目标在于要促进民主要求，这也反过来帮助经济的发展。根据句意说明D正确。