1·In the workplace, their mothers had come into contact with such solvents as toluene, xylene, mineral spirits, isopropyl alcohol and trichloroethylene.
在工作场所，他们的母亲接触过诸如甲苯、二甲苯、矿物精炼物、异丙醇和三氯乙烯等有机溶剂。
2·The aromatics are ringed hydrocarbons, such as benzene, toluene and xylene. Benzene is used to make polystyrenes e.g.
芳烃是环状碳氢化合物，如苯，甲苯和二甲苯。
3·Add 1 drop of toluene as a preservative.
加一滴甲苯作为防腐剂。
4·Suggest what the metabolite might be, and why the metabolism of toluene is different from that of benzene.
说明代谢物可能是什么，并且说明为什么甲苯的代谢物和苯的代谢物不同。
5·The idealized model is accurate in the case of chemically similar liquids, such as benzene and toluene.
理想模式在化学结构相似液体的情况下是正确的，如苯和甲苯。