题目

from north far good end China than be population however The novel coronavirus (冠状病毒), which originated in the 【1】 city of Wuhan and has now spread to 120 countries, has much in common with seasonal flu. They are both viralinfections, share similar symptoms and crucially (关键地) can spread (传播) 【2】 human to human. In the midst of flu season in much of the 【3】 hemisphere, telling the difference between the two will be vital in stopping its spread.Human coronaviruses, of which there are four, can cause respiratory (呼吸道)infections similar to flu: while many sympt5．用适当的方法解方程：（2x-3）2=9（2x+3）2．