Some important dates in China's fighting Covid-19 before May 7, 2020
Jan 20, 2020
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Feb 20, 2020
Jan 23: Wuhan declared temporary outbound (向外的) traffic restrictions.
Jan 24: National medical teams began to be sent to Hubei and Wuhan.
Jan 27: The Central Steering (指导) Group arrived in Wuhan.
Feb 18: The daily number of newly cured and discharged (出院) patients exceeded that of the newly confirmed cases.
Feb 21, 2020
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Mar 17, 2020
Feb 21: Most provinces and equivalent administrative units started to lower their public health emergency response level.
Feb 24: The WHO-China Joint Mission on Covid-19 held a press conference in Beijing.
Mar 11-17: The epidemic (流行病) peak had passed in China as a whole.
Mar 18, 2020
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Apr 28, 2020
Apr1: Chinese customs began NAT (核酸检测) on inbound arrivals at all points of entry.
Apr 8: Wuhan lifted outbound traffic restrictions.
Apr 26: The last Covid-19 patient in Wuhan was discharged from hospital.
Apr 29, 2020
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May 7, 2020
Apr 30: The public health emergency response was lowered to Level 2 in the Beijing-Tianjin-Hebei region.
May 7: The State Council released Guidelines on Conducting Covid-19 Prevention and Control on an Ongoing Basis.
56. What happened between January 20 and February 20? ( )
答案：A
57. From which date were private cars allowed to go out of Wuhan? ( )
答案：C