问题详情

The primary purpose of this passage is to .
A．analyze what causes Parkinson"s disease
B．demonstrate how to prevent Parkinson"s disease
C．warn the young people of the danger of Parkinson"s disease
D．present new movements in the study of Parkinson"s disease此题为多项选择题。请帮忙给出正确答案和分析，谢谢！