wear a mask when you go out d. keep your hands clean A. abc B. abd C. acd D. bcd 相关知识点: 试题来源: 解析 sneeze and itch(发痒). What exactly happens to them? Your eyes itch. Symptoms Your nose is running. (症状) You have rashes(疹子) on your skin. It is an allergy...
The Centers for Disease Control and Prevention recommends that you always cover sneezes when they occur, as they are some of the easiest ways to spread germs from person to person. Sneezes can spread diseases up to nearly 25 feet in some cases, according to the National Institutes of Health....
Graham, Janis
What a sneeze can do! (喷出的air traveling at up to 33 meters per second) It's reported that germs can easily travel far enough with the wind. If you stand a few feet away from someone when they sneeze, you may feel a few drops hit your arm. Let's say you go to school with...
Everyone sneezes, but some sneezes can be particularly loud. You might be tempted to try to stifle a sneeze if you don't want everyone to stare at you (particularly if you're in a quiet place like the library or church), but as it turns out, holding in a
What Makes Toons Tick: Whirlwind Romance / Going Up / Nothing to Sneeze At: Directed by Byron Vaughns. With Charlie Adler, Tress MacNeille, Joe Alaskey, Don Messick. Buster and Calamity show a time machine to observe the toons' early lives. Dizzy falls i
HIV (human immunodeficiency virus) is a viral infection that slowly weakens your immune system. The virus kills a type of white blood cell called CD4. A normal CD4 count ranges from 500 to 2,000. You have HIV when your CD4 count ranges from 200 to 500. You have AIDS (acquired immune ...
An upper respiratory infection is also called a cold. It can affect your nose, throat, ears, and sinuses. You are more likely to get a cold in the winter. Your risk is higher if you smoke cigarettes or have allergies, such as hay fever.What causes a cold?
In Western(西方的)countries, people think burping is a bit rude(粗鲁的). Burping loudly in front of other people is really rude. So when we burp, we say "excuse me". However, when we sneeze, we don't say "excuse me". In fact, it is polite(有礼貌的)or for other people to ...
There are three main causes of nerve damage that can lead to numb feet and toes:1. Temporary Nerve Compression Numb feet often develop either after we have been sitting awkwardly for a while e.g. sitting with our feet crossed underneath us, or when wearing tight fitting shoes. This is ...