Health officials in western Siberia are to begin in slaughter of thousands of birds today after identifying Russia’s first outbr

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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.
【C12】

选项 A、at
B、through
C、into
D、despite

答案C

解析 习惯搭配come into contact with接触到,和……接触,碰到;本句意为:这些鸟可能会接触到其它飞往欧洲或北美洲的鸟类;因此答案为C。
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