Questions 1-4 The text has 9 paragraphs (A-I). Which paragraph contains each of the following pieces of information? *

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问题 Questions 1-4
The text has 9 paragraphs (A-I). Which paragraph contains each of the following pieces of information?

*

选项

答案The most important source of energy for China in 2020 is expected to be ______ .

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