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题型:语法填空-短文语填 难度:0.65 引用次数:109 题号:10170958
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COVID-19 may not originate in China

Chinese top respiratory specialist Zhong Nanshan said although the COVID-19 first     1     (appear) in China, that does not necessarily mean it originated (起源) here, “but we can’t say that virus comes from abroad. The question could     2     (answer) by tracking down the source of the novel coronavirus and getting a result ”.

Analysts said Zhong’s words indicate the toughness of the battle against the coronavirus,     3     (especial) when the disease is spreading around the world but the source and transmission (传播) chain     4     (be) still not completely clear.

Yang Zhanqiu, a director of Wuhan University, said that the novel coronavirus might have multiple birthplaces co-existing around     5     globe. Due to the differences of climates, the virus in some places burst out     6     (early) than others. There are also possibilities that the novel coronavirus in Wuhan was from another source. The chains of transmission are     7    vital importance to contain the disease. Besides,     8     (know) the source of the virus will help with drug development.

Expert said that China’s moves of blocking cities     9     forbidding the trafficking (非法交易) of wildlife have helped narrow down the research into the transmission chain.

At a press conference on Thursday, Zhong praised the timely     10     (measure) taken by the Chinese government, which have successfully prevented a mass COVID-19’ outbreak in China.

19-20高一下·甘肃兰州·阶段练习 查看更多[2]

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