用leading effect造句子，“leading effect”造句

From the view of the geo-economy, the metropolitan regions generally have obvious regional economic superiority and leading effect of the financial center, ahd occupy absolute proportion of GDP.

The effective promotion of the reform in the two cities will produce modeling and leading effect by the experience in undeveloped areas and the whole China.

This essay is aimed to expound the singing surroundings'suggestive, indicative and leading effect on singing method and mastering the technical knowledge.