А. М. Maslova Z. I. Winestein L. S. Plebeyskaya Essential English for Medical Students Second Edition, Revised and Enlarged

Pick out the appropriate phrase fo end the sentences:

1. If the human body had no resistance capacity... (a) people would develop any infectious diseases; 6) even direct contacts with infected people would never result in diseases) 2. If a previous attack of a certain infectious disease did not produce a more or less permanent immunity... (a) all of us would be immune (невосприимчивые) to any subsequent attack of this particular infection; 6) people would lack resistance to subsequent infection) 3. If all of us had absolute immunity... (a) antitoxins would not be able to neutralize toxins; 6) no infectious disease would ever develop in the human organism)

13. 
    Finish the sentences using Complex Object:
    

1. In the practical therapy class the students watched ... (а) как сестра делала больным подкожные и внутримышечные инъекции; б) как оперировали больного с закупоркой желчных протоков) 2. The scientists have found... (а) что фагоциты окружают и разрушают бактерии, проникшие в ткани; б) что антитоксины нейтрализуют действие токсинов)

14.