What is a coronavirus?Coronaviruses are a large group of viruses that are common among animals. In rare cases, they are what scientists call zoonotic, meaning they can betransmitted (传播，动词) from animals to humans, according to the US Centers for Disease Control and Prevention.冠状病毒是一...
For some people,music is no fun at all.About 4% of the population is what scientists call "amusic".People who are amusic are born without the ability to enjoy musical notes.Amusic people often cannot tell the dif...
D. Scientists should stop their self-citations to guarantee academic fairness. 31. Which of the following is the best title of the passage? A. One Cites Himself: A Rise To Fame B. Funny Or Serious: It Serves Y...
Many people think scientists are people in clean white coats who work in labs. And some scientists do work in labs, But there are B scientists who work in woods and jungles.These scientists are called“animal behavior(行为) scientists",and they study animals as they live in nature.Why don...
And some scientists do work in labs. But there are 1 scientists who work in woods an jungles. These scientists are called "animal behavior(行为)scientists", and they study animals as they live in nature.Why don't these scientists catch animals and study them in zoos? The 2 is in the ...
happiness—arebehindtheso-called“runner?shigh”,astudysuggestedthattheremaybemoreto thisphenomenonthanwepreviouslyknew. Accordingto arecentstudy published by a group ofscientistsfrom several German universities,agroupofchemicalscalledendocannabinoids(内源性大麻素)mayactuallybe responsibleforthisfamiliargreatfeelin...
4 Scientistscannotanswerthisquestionfor now,accordingtotheworldHealthOrganization.We doknowthatourbodiescannottakein“large”pieces ofmicroplastics.However,iftheplasticsaresmall enough,theycanfind waysintoourbodiesand staythereforalongtime.What?s more,earlier studieshaveshownthatmicroplastics maycontributetolungcan...
reach us. Eventually, some galaxies may be so distant that their light never17. This might imply that any edge— and whatever is on the other side — is increasingly18itself from us. Regardless of these uncertainties, scientists still spend a lot of time thinking about what comes after ...
Many people think scientists are people in clean white coats who work in labs.And some scientists do work in labs.But there are (1) scientists who work in the woods and at the jungle.These scientists are called "animal behavior (行为)scientists", and they study animals as they live in ...
Scientists recently found that a tiny animal called Siberian hamster (大颊鼠) changes the color of its fur because of the number of hours of day-light. In shorter days of winter its fur becomes white. The fur becomes gray-brown in longer hours of daylight in summer.Inner signals control ...