The researchers suggest that the component particles making up stealth dark matter particles each have a fractional charge of positive or negative one-half, held together by a "dark form" of the strong interaction. Stealth dark matter particles themselves would only have a neutral charge, leading ...
Free IELTS reading Practice test 2024. Free IELTS general reading score and IELTS academic reading score analysis. Free IELTS text samples and course material.
Artificial intelligence is also being used to analyse vast amounts of molecular information looking for potential new drug candidates – a process that would take humans too long to be worth doing. Indeed, machine learning could soon be indispensable to healthcare. Artificial intelligence can also h...
雅思阅读练习 ielts_academic_reading_practice_test_2 IELTS reading passage - Bring back the big cats Bring back the big cats John Vesty says that the time for returning vanished native animals to Britain has arrived. Around598AD,there is a poem that describes the hunting of a mystery animal ...
IELTS reading passage - A Workaholic Economy A Workaholic Economy As a result of the Industrial Revolution, or for the first century, increased productivity led to reduced working hours. Employees who worked 12 hours a day, six days a week, found working hours of 10 hours a day, and then...
雅思阅读练习 ielts_academic_reading_practice_test_3 IELTS reading passage - William Gilbert and Magnetism William Gilbert and Magnetism A.The sixteenth and seventeenth centuries saw 2 great pioneers of modern science: Gilbert and Galileo. Their eminent findings made a big impact. Gilbert was the ...
雅思阅读练习 ielts_academic_reading_practice_test_21 IELTS reading passage - What Do Whales Feel What Do Whales Feel?A.Some senses in Cetaceans are reduced or are absent or don't work in water, but we and other terrestrial mammals take these for granted. For example, toothed species are ...
IELTS reading passage - Great Migrations Great Migrations A.Animal migration is far more than just the movement of animals. It can be vaguely described as movement that occurs at regular intervals mostly annually - that includes many species of animals, and is rewarded only at the end of the...
雅思阅读练习 ielts_academic_reading_practice_test_7 IELTS Reading Passage - Making Time for Science Making Time For Science Chronobiology is something out-of-the-box thinking inspired by a science fiction novel; moreover-it's a scope of study regarding one of the ancient processes of life on ...
IELTS Reading Passage - Disappearing Delta Disappearing Delta The Nile delta’s fertile land eroded along the Mediterranean coast of Egypt is highly increased, 100 metres per year is eroded in some parts. In the past, sediment brought to the delta by River Nile is replaced in the place, where...