(1)We humans have had few innovations in the past years, haven't we?;(2)How many great innovations mentioned in the passage will there be in the future?;(3)What's the advantage of the hydrogen fuel cell?;(4)Why is full human genome sequencing useful to us humans?;(5)When would ...
Today there is a growing awareness that mental well-being needs to be given as much attention as physical health. More and more people are suffering from various psychological problems, which have led to many serious consequences and ...
解析 【答案】How long【核心词汇/短语】on the earth:在地球上【翻译】人类在地球上已经存在了数百万年了。【解析】根据题干要求,划线部分是“for millions of years(数百万年)”,表示时间长度,因此应该由how long来提问。句子开头首字母大写,因此答案是“How long”。
Gene KimJessica OrwigSkye Gould
How many leap years have there been?Leap Year:A leap year is a year with an extra calendar day on it. The extra day falls on February 29th. The leap year is part of the Gregorian calendar and is an attempt to help keep calendar years in synchronization with solar years because a ...
C For years, scientists have been researching how exposing(暴露) humans to nature may Improve their physical and mental health. People are encouraged to visit forests and grow houseplants. Now researchers are also testing whether we can get some of the same benefits from experiencing nature in VR...
Those results have not been confirmed in humans, but aspiring Methuselahs (including Mr Johnson) are taking it anyway. Ritalin, prescribed to treat attention-deficit hyperactivity disorder, and testosterone, the chief male sex hormone and a powerful anabolic steroid, are claimed to be nootropics, ...
根据文中“But for many years, salt’s most important job was to protect food.” 但多年来,盐最重要的工作是保护食物。可知,故答案为Salt’s most important job was to protect food.【小题6】细节理解题。根据文中“For centuries, salt was also hard to get because its usefulness made it ve...
How Many Humans Have Ever Lived? In 2022, the world will likely hit a momentous milestone—a population of eight billion. Of course, thisdramatic increasein the world’s human population is a relatively new phenomenon. For many thousands of years, there were fewer people roaming the Earth tha...
I learned this lesson from a(n) ___17___ many years ago. I took the head ___18___ job at a school in Baxley, Georgia. It was a small school with a weak football program. It was a tradition for the school’s old team to play against the ___19___ team at the end of sp...