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【简答题】
Fill in the blanks with the proper forms of the given words. suspect quarantine transmit epidemic vaccine confirm Infect outbreak (1) A pneumonia _________ was first reported in the city of Wuhan in December, 2019. (2) Cases with no clear link include those with no travel history to China or contact with a__________ case. (3) Hubei province had reported 58,182 cases of ________ until February 18, 2020. (4) The treatment and _________ prevention work should not be delayed because of the shortage of funds. (5) Detailed investigations found that SARS-CoV was ______________ from civet cats to humans. (6) scientists from various pharmaceutical companies and other institutions have tried to create a _________ to stop its spread (7) All 3,700 people on board were subject to a 14-day ____________. (8)___________cases should be placed in isolation and managed according to recommended procedures for infection control.
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正确
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错误
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A.
文章结尾符
B.
插入点,可在该输入字符
C.
鼠标光标
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字符选取标志
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A.
正确
B.
错误
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A.
文章结尾符
B.
插入点,可在该处输入字符
C.
鼠标光标
D.
字符选取标志
【判断题】周期信号的幅度谱是离散的。()
A.
正确
B.
错误
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A.
正确
B.
错误
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A.
正确
B.
错误
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正确
B.
错误
【简答题】大力神杯的设计者是哪国人?