Why was china able to be taken advantage of early in the 20th century nations who traded with her?

China took advantages from the nations it traded during the early 20th century because the nations were highly develop in technology. China was able to take the new technology for making the country more properer and wealthy. Modernization began to take place in China in the 20th century.

Explanation:

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i think the answer is a and i hope this ; ))