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1·This could beas simple as eating at a new restaurant or taking a new route to work.

这和换一家新餐馆吃饭或走一条新的上班路线，一样地简单。

2·Methods Eosinophils and BEAS-2B cells were fixed with 1 % paraformaldehyde for 1h separately.

方法用1%多聚甲醛固定嗜酸粒细胞和支气管上皮细胞系BEAS-2B细胞；

3·Whereas lower dose of VOCs mixture had a transforming effect, the high dose of the mixture caused BEAS-2B cell death.

且VOC混合物的急性毒性效应在高剂量时呈现细胞致死效应，较低剂量时呈现一种细胞转化效应。