The vaccine for measles is best characterized by() A: Bacteriocin B: Killed virus vaccine C: Inactivated virus vaccine D: Live virus vaccine E: Recombinant virus vaccine

The pathogen of hemorrhagic fever with renal syndrome is A: Dengue virus B: hantavirus C: Xinjiang haemorrhagic fever virus D: Ebola virus E: Congo hemorrhagic fever virus

Talk Computer virus.mp3: How to Avoid Getting a Computer Virus 1. (１)＿＿＿＿＿＿＿＿＿＿ ■Ways of spreading ■（２）＿＿＿＿＿＿sent in emails ■USB drive ■ Defense ■(3)＿＿＿＿＿＿is the best defense ２．Worms ■What are they? ■Worms are scarier(4) ＿＿＿＿＿＿＿ ■ Way of spreading ■ Spread to computers(5)＿＿＿＿＿＿＿ humans'　efforts ■ Defense ■Keep your computer software(６)＿＿＿＿＿＿＿＿＿＿ ３．（７）＿＿＿＿＿＿＿＿ ■What are they? ■ Appear to be a(8)＿＿＿＿＿＿＿＿＿ ■ Way of spreading ■ （９）＿＿＿＿＿＿from　the Internet ■Defense ■ Only download softwares from (10)＿＿＿＿＿＿＿＿sites/js/editor20150812/dialogs/attachment_new/fileTypeImages/icon_mp3.gif

Which is the most common pathogen in infant acute bronchiolitis? A: Respiratory syncytial virus B: Influenza virus C: Rhinovirus D: Ecovirus E: Coxsackie virus

SARS-CoV-2 is a ____ A: RNA virus B: DNA virus C: Viroid D: Virusoid E: Prion

Which one can lead fetal anomaly in pregnant? A: Influenza B virus B: encephalitis B virus C: Rubella virusv D: Mumps virus E: Poliovirus

作为理性的厂商，其决策选择的特征是（）。 A: MP＞AP B: MP＜AP C: MP≤AP，MP≥0 D: MP≥AP，MP≥O

平均产量曲线AP与边际产量曲线MP的交点为平均产量AP的最大值，两条曲线相交前，（ ）；相交后，（ ） A: AP＞MP；AP＜MP B: MP＞AP；MP＜AP C: AP＞MP；AP＝MP D: MP＜AP；MP＝AP

列车为6节编组，编组形式为（） A: +Tc * Mp *M = M B: +Tc * Mp *M = M * Mp * Tc + C: +Tc * Mp *M = Tc D: +Tc * Mp *M = Mp

孕妇感染后可引起胎儿先天性小头畸形的病毒是 A: 森林脑炎病毒 B: Zika virus C: Dengue virus D: HIV E: Ebola virus