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Is US able to protect the lives of its people as COVID-19 spreads? By Xian Jiangnan ( People's Daily Online ) 11:16, March 03, 2020 As the US braces for the novel coronavirus to widen its spread, the battle has begun to contain the disease and at the same time ease public concerns. But questions remain over how prepared the nation to ensure the safety and health of the American people. On Feb. 29, the U.S. Surgeon General Dr. Jerome Adams urged Americans to stop buying masks on Twitter. In response to a surge in mask purchases, on Feb. 29, U.S. Surgeon General Dr. Jerome Adams posted a tweet urging Americans to stop buying masks, leaving the public confused over how they should protect themselves against the virus. “They are NOT effective in preventing general public from catching coronavirus, but if healthcare providers can’t get them to care for sick patients, it puts them and our communities at risk!” he said.The best protective measures, he continued, are staying home when sick, washing hands and other everyday preventive actions. ( Screenshot from Twitter) But his remarks immediately drew a skeptical response. Many argued that he had just contradicted himself and made the general populace seem “expendable” while putting people’s lives at risk. “If they aren’t effective at preventing transmission then why do healthcare workers need them?” a netizen with the screen name MongoFarm asked. The US government and CDC echoed Adams’ advice, recommending that people who become ill stay at home. However, staying home when sick may not be a luxury all Americans can afford. Source from http://en.people.cn/n3/2020/0303/c90000-9664189.html
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【多选题】“包”有什么要求?
A.
安全
B.
方便
C.
安全指要保证产品在货架寿命期间不变质
D.
方便指方便使用,方便储运
【单选题】人的血液中,[H 2 CO 3 ]=1.25×10 -3 mol/L,[HCO 3 - ]=2.5×10 -2 mol/L.H 2 CO 3 的pKa1=6.1,则血液的pH值是
A.
7.4
B.
7.67
C.
7.0
D.
7.2
【多选题】商务男士在使用公文包时,有哪些要求( )。
A.
用包不宜多
B.
用包不张扬
C.
包内宜整洁
D.
用包不乱放
【单选题】会引起所有者权益总额变动的经济业务是
A.
提取盈余公积
B.
宣告分配给投资者的利润
C.
资本公积转增资本
D.
将本年净利润转入利润分配账户
【单选题】人的血液中,[H2CO3]=1.25×10-3mol/L(含CO2),[HCO3-]=2.5×10-2mol/L.假 设平衡条件在体温(37°C时H2CO3的pKa1=6.37),则血液的pH值是
A.
7.4
B.
7.67
C.
7.0
D.
7.2
【单选题】在人的血液中, c (H 2 CO 3 ) = 1.25×10 −3 mol∙L −1 , c (HCO 3 − ) = 2.5×10 −2 mol∙L −1 。已知 H 2 CO 3 的 p K a1 = 6.1 ,则血液的 pH 值是
A.
7.0
B.
7.2
C.
7.4
D.
7.6
【简答题】冷藏包运送和贮存疫苗有什么要求?
【简答题】对包芯线的表观质量有哪些要求?
【单选题】人的血液中,[H2CO3]=1.25×10-3mol/L(含CO2),[HCO3-]=2.5×10-2mol/L.假设平衡条件在体温(37℃)与25℃相同,则血液的pH值是
A.
7.5
B.
7.67
C.
7.0
D.
7.2
【单选题】胎盘不能分泌的激素是
A.
绒毛膜促性激素
B.
雌激素
C.
人绒毛膜生长激素
D.
孕激素
E.
黄体生成素
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