Test analysis: "the second decade of the 20th century" means 19 10- 1920. "The milestone of China's historical turning point" refers to the great influence of the event. Item a refers to an event; The establishment of item B "New Youth" has no milestone influence; The same is true for item C; Therefore, the question should choose item D.
Comments: Similarities and differences between the old and new democratic revolutions;
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project
Old democratic revolution
new-democratic revolution
discrepancy
leadership
national bourgeoisie
the working class
Guiding ideology
Three Principles of the People
Marxism
Mass basis
Lack of mass base (mainly relying on communist party and the new army)
Have a broad mass base.
Target future
Establish a bourgeois republic and develop capitalism.
A country that establishes people's democratic dictatorship will be socialist in the future and realize * * * productism.
Revolutionary category
Part of the world bourgeois revolution.
Part of the world proletarian revolution
similar
sociality
Semi-colonial and semi-feudal society
Revolutionary task
anti - imperialist and anti - feudal
revolutionary character
Bourgeois democratic revolution