题目

比451少87的数是；比312多199。 答案：【1】364【2】511How to keep yourself from new coronavirusThe outbreak of new coronavirus first detected in China is serious. You may feel scary. Here are some simple ways that protect you from catching it.Wear masks outdoorsWearing masks is one of the most effective ways to protect you from getting infected. Make sure to wear it properly by tightening up the nose clip and pulling the bottom of it so that your nose and mouth are both covered.If you are not feeling well or have symptoms such as fever, fatigue, cough and trouble breathing, a mask is also needed to prevent you from spreading virus to others. Surgical masks used by medical workers are not recommended for common people as they may lead to oxygen deficient if worn for long periods.Cover your coughs and sneezes with tissueCover your mouth and nose with a tissue when you cough or sneeze, or you can cough or sneeze into your sleeves, but avoid covering with your hands directly.Wash your hands frequently and properlyWash your hands with soap and running water thoroughly for no less than 15 seconds. Wash your hands before eating and after using the toilet. Wash your hands after returning home. Wash your hands after touching trash or garbage. Wash your hands after contacting with animals or handling animal wastes.Strengthen your immune system and exercise regularlyExercising regularly is one of the most important ways to help you stay away from catching any infections.Make sure that shared spaces have good air flow and avoid going to crowded places such as hospitals, the railway stations and airports. Wear a mask if transport or movement is necessary.Avoid close contact with peoples who have flu or cold-like symptoms.Eat thoroughly cooked meat and eggs. Avoid contact with wild animals or farmed livestock if there is not any protection.Seek prompt medical attention if you have symptoms or respiratory infection.【1】 tokeepyourselffromnewcoronavirusWearmasksoutdoors*Wearing a 【2】 isaneffectivewaytoprotectyoufromgettinginfected andstopyoufromspreadingvirustoothersinpublicplacesifyouaresick.*Wearamaskproperlyto 【3】 bothyournoseandmouth.*Commonpeoplearen'tadvisedtousesurgicalmasksbecausethey may 【4】 oxygendeficiency.Coveryourcoughsandsneezeswithtissues* 【5】 coveryourmouthandnosewithyourhandsdirectlywhenyoucoughorsneeze, youshoulduseatissueorcoughorsneezeintoyoursleeves 【6】.Washyourhandsfrequently andproperly*Washyourhandswithsoapandrunningwaterthoroughlyasoftenas possibleforat 【7】 15seconds.Strengthenyourimmune systemandexercise regularly*【8】 regularexerciseisoneofthemostimportantwaystoprotectyoufromgettinginfected.*Avoidcontacting 【9】 withpeoplewhohavefluorcold-likesymptoms.*Eatthoroughlycookedmeatandeggs.*Avoidcontactwithwildanimalsorfarmedlivestock 【10】 anyprotection.*Seekmedicalattentionatonceifyouareinfected.