填空题

The author cites the example of Emily Hoffman to show that ______ is / are one cause of overweight.

【参考答案】

genes

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填空题

The research of Dr. Christine Williams shows that overweight kids may become prime sufferers of heart attacks and strokes.

填空题

The example of Felice Ramirez shows us that in kids who are prone to obesity ______ is are a stimulating factor for overweight.