When we hear the word "virus",we naturally think of something dangerous.However,some viruses coexist(共存)with us and we can even make good use of some of them,according to recent studies. Biologists suggest that 380 trillion viruses are living on and within your body right now.These virus...
without enough these viruses, how can B cells remember them? That's why we need to take the vaccine more than one time. Though this vaccine is safe, it might not be as effective as it is expected to be.The live-attenuated vaccine is different. In this vaccine, the viruses are weakened...
The brain is very active during sleep. During sleeping hours, the brain appears to clean itself. That idea has gotten the attention of researchers. Losing a good night’s sleep can cause people’s thinking to be unclear. But a continuous ...
The best of National Geographic delivered to your inbox Sign up for more inspiring photos, stories, and special offers from National Geographic.Sign Up Legal Terms of Use Privacy Policy Interest-Based Ads Our Sites Nat Geo Home Attend a Live Event Book a Trip Buy Maps Inspire Your Kids Shop...
Yes, phones can get viruses from malicious websites. Downloading infected content or even just visiting harmful sites exposes your device to a wide range of malware. To browse more safely, ensure your phone's browser and other applications are updated, and be careful when accessing unfamiliar web...
注意题干中将a换成了an,所以在答案中就不能再有good。2、[解析] 本题问的是“怎样判断电脑中了病毒”,从原文“you may think you have a virus, but how do you really tell? You scan your system for viruses with a software program”可得到答案。题干中scan作by的宾语,所以转化为scanning。3、[...
If you don’t have antivirus software, you can purchase it online or you can use Panda Software’s free Active Scan that will scan you computer and report on any infections. If the virus scan finds an infection, it will give you the name of the virus or viruses that you have ...
Avoid touching your mouth, nose, and eyes as they're direct pathways for viruses into your body. When you sneeze or cough, cover your mouth and nose with a tissue or elbow, then wash your hands. If you're sick, don't share kitchen, bedding, bathroom, or other household items. Regular...
The viruses that cause hand, foot, and mouth disease can be found in an infected person’s: nose and throat secretions (such as saliva, sputum, or nasal mucus), blister fluid, and feces (stool). 传播途径 传 播...
can make the body indicators in the normal range. Further, water is the source of life, where there are many activities in the human body that need water to regulate. Drinking more water to ensure that the respiratory ...