1. A.You diagnose your own illness and then read about it.
    a.你对自己的病进行诊断，然后再阅读有关书籍。

2. Sales staff in white coats "diagnose" skin types on "computers" and blind customers with the science of damaged molecules and DNA repair.
    推销人员穿着白大褂，在"电脑"上给消费者"诊断"皮肤类型，用修复受损分子和DNA这些技术来蒙蔽消费者。

3. Computers will diagnose any problems with the engine. Computer connections will list the nearest places of repair, tell the cost of new parts and the place where they can be bought.
    电脑会诊断出汽车引擎的任何问题。电脑网络会显示出最近的修理站点，标出新零件的价格以及在哪里有售等。

4. When they would be used in hospitals to help doctors to diagnose illnesses,
    计算机可以帮助医生诊断病情。