题目内容：
根据以上资料，回答题。
Paragraph 1 __________．
参考答案：
答案解析：
单选题：根据以上资料，回答题。Paragraph 1 __________．
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Paragraph 1 __________．
Paragraph 1 __________．
Solar energy is generated as protons fuse to form helium ato
Solar energy is generated as protons fuse to form helium atoms.A．A bred B．B conc
Defined most broadly， folklore includes all the customs，beli
Defined most broadly， folklore includes all the customs，beliefs and traditions t
A hadB haveC having D has
A hadB haveC having D has
A withoutB on C withD because of
A withoutB on C withD because of
请在第（64）处填上最佳答案。
请在第（64）处填上最佳答案。A．because of B．due to C．since D．owing to