Efforts to reassure consumers and governments proved【C6】______ . France, Germany, Italy, Finland and Greece were among countries which announced bans【C7】______ British beef shipments.
A committee of EU veterinary experts, meeting in Brussels,【C8】______ new protective measures but said transmission of the disease from cattle to humans was unproven and did not【C9】______ a general ban on British beef exports. Britain's own main consumer group advised people to【C10】______ beef if they wanted to be absolutely sure of not【C11】______ CJD which destroys the brain and is always【C12】______
"Could it be worse than AIDS？"
The stark headline in Friday's Daily mail newspaper encapsulated the fear and uncertainty【C13】 Britain. CJD【C14】______ humans in the same way that BSE makes cows mad--by eating away nerve cells in the brain【C15】______ it looks like a spongy Swiss cheese.
The disease is incurable. Victims show【C16】______ of dementia and memory loss and usually die【C17】______ six months.
Little is known【C18】______ sure about the group of diseases known collectively as spongiform. encephalopathies, which explains【C19】______ some eminent scientists are not prepared to【C20】______ a human epidemic of AIDS-like proportions.
【C1】

A. in
B. on
C. over
D. around