Inthepastfewyears,researchhass

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更新 2022-09-03
科目英语
题型单选题
难度较易
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In the past few years, research has suggested that Vitamin D may increase the level of serotonin（血清素）, one of the key nurotransmitters influencing our mood, and ________it helps to relieve mood disorders.

A．that

B．where

C．what

D．which

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---_________.

A．I’m speaking.	B．Hello.
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A．on

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A．that

B．where

C．which

D．what

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—She looks very happy. She ______ have passed the exam.
—I guess so. It's not difficult after all.

A．should

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So much of interest ________ that most visitors simply run out of time before seeing it all.

A．offers Beijing	B．Beijing offers
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