题目内容

You always think of others. It’s most ___________of you to call on me from time to time.

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One of the most common sexually transmitted diseases that may lead to cervical carcinoma is caused by which of the following viruses?

A. Cytomegalovirus
B. Papillomavirus
C. Epstein-barr virus
D. Herpes simplex virus
E. Adenovirus

Kuru is a fatal disease of certain New guinea natives and is characterized by tremors and ataxia; Creutzfeldt-Jakob disease (CJD) is characterized by both ataxia and dementia. These diseases are thought to be caused by

A. Slow viruses
B. Cell wall-deficient bacteria
C. Environmental toxins
D. Prions

Mad Cow Disease has been highly publicized in Great Britain. This disease, which is similar to scrapie, is caused by

A prion
B. A virus
C. Rickettsiae
D. An autoimmune reaction
E. A bacterium with a defective cell wall

翻译：家教：____________