题目内容
Which prefix means against?
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What does the root "dem" mean in the word "pandemic"?
______________ refers to the study of disease.
What is the correct verb of the word "transmissible"?
Fill in the blank with a word chosen from the below in its proper form.pathogen pneumonia complication contagiousvaccine pandemic ultraviolet antiviral1. The 1918 influenza_______was the most severeonein recent history.2. Many people are wondering when we'll finally get to a coronavirus __________.3. Sunscreens play an important role in blocking _________ radiationfrom being absorbed by the skin.4. Most types of _________ cause fever, cough with sputum, shortness of breath and fatigue.5. By far, we know that coronavirus is a highly________ infection of the respiratory tract.6. If you get the flu this winter, you may be prescribed an__________medication.7. These serious _________ of COVID-19 are most likely to develop in elderly people, as well as those who have weakened immune systems.8. Infection with a____________does not necessarily lead to disease.
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