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  3. Health officials in western Siberia are to begin in slaughter of thousands o

Health officials in western Siberia are to begin in slaughter of thousands o

游客2025-01-23  1
问题     Health officials in western Siberia are to begin in slaughter of thousands of birds today after identifying Russia’s first outbreak of a bird flu strain that can be fatal in humans. Doctors in neighboring Kazakhstan have also【C1】______ that a 19-year-old poultry worker【C2】______ admitted to hospital with【C3】______ of bird flu, only to be diagnosed【C4】______ double pneumonia.
    The H5N1 strain of avian【C5】______ has killed 60 people【C6】______ 2003 in Vietnam, Thailand, Cambodia and Indonesia, but has rarely been found in birds or humans【C7】______ Asia.
    Health officials【C8】______ that H5N1 is infecting migrating birds, which could spread the【C9】______ into Europe. Earlier this year China registered the first outbreak of H5N1【C10】______ wild birds, some of which【C11】______ to breeding grounds in Siberia. These birds could come【C12】______ contact with others flying to Europe and North America.
    Russia’s【C13】______ began in the Novosibirsk【C14】______, about 1,750 miles【C15】______ of Moscow in the Asian part of Russia, early last month, but the veterinary service【C16】______ the virus only last week. Valery Mikheyev, the chief sanitary doctor of Novosibirsk, said that teams had been【C17】______ the【C18】______ birds and supervising the slaughter in 13【C19】______ villages. He said, "The state of【C20】______ of the inhabitants of these areas gives no cause for alarm. Up to 6,000 people are being checked per day. [br] 【C5】
选项 A、vaccine
B、flu
C、virus
D、bacteria
答案 B
解析 语境搭配由于本文谈的是禽流感问题，此句应为：H5N1型禽流感病毒(avian鸟类的)自2003年以来，已导致越南、泰国、柬埔寨和印度尼西亚共60人死亡，但亚洲之外几乎没发现禽类或人类感染上这种病毒。因此此处应填B，与avian共同构成“禽流感”之意。
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