Hepatitis B virus; Trimester pregnant; Trace elements.

乙肝病毒；孕中期；微量元素。

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Atomic absorption spectra showed that APP-A and APP-B contained some trace elements which were healthful to organism.

原子吸收光谱分析表明，APP含多种对机体有益的微量元素。

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Commissioner duck, is a cooler of good ingredients, which contains protein, lecithin, vitamin a group, B group, and other trace elements, and nicotinic acid, and so on.

鸭肉甘美，性凉是一种上佳的食材，其中含有蛋白质、卵磷脂、维生素a族、B族等多种微量元素，以及烟酸等。

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