According to the professor, what is the primary advantage of spectroscopy over other labor

According to the professor, what is the primary advantage of spectroscopy over other laboratory methods for analyzing artworks？

A．It does not damage the artworks.

B．It provides a more accurate analysis than other methods do.

C．It uses equipment that can be transferred to other locations.

D．It can be used by individuals with little scientific training.

此题为多项选择题。请帮忙给出正确答案和分析，谢谢！