SORU: cümleler sırasıyla okunduğunda anlam bütünlüğünü bozan cümleyi bulunuz
(I) There are many different types of mercury. (II) But the most dangerous of all are the organic mercury compounds. (Ill) Elemental mercury is used in thermometers, and is the least toxic form. (IV) These are toxic by ingestion, inhalation or contact. (V) Since they are not removed from the body, their concentrations gradually build up, particularly in the brain.