Niels Bohr’s atomic theory______the hydrogen atom consisted of a positive nucleus and an electron traveling around it.

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问题 Niels Bohr’s atomic theory______the hydrogen atom consisted of a positive nucleus and an electron traveling around it.

选项 A、stating
B、stated that
C、that
D、it stated

答案B

解析 The answer is the main verb stated and the subordinator that, which introduces a noun clause, the direct object of stated.

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