The invention was made perhaps as early as in the Tang Dynasty.Knowledge of gunpowder was spread throughout the world as a result of the Mongol conquests in the 13th century. It was employed in warfare to some effect from at least the 14th century. 31.《论语》(The Analects of Confucius)...
The five years since the 19th National Congress have been truly momentous and extraordinary. The Party Central Committee has pursued a strategy of national rejuvenation amid global changes of a magnitude not seen in a century...
A.eight; eighth B.eighth; eight C.eight; eight 27.(2020山东东营)17.We asked 200 students in our school about whether they wanted a younger brother or sister. Here are the results. It shows that ___ percent of them don’t want to have one. This is a big problem. A.10 B.40 C....
"China's Twenty-Four Solar Terms didn't appear all at once, but developed over a long period. In the Western Zhou Dynasty (c.11th century-771 BC) the two solstices and equinoxes appear. Then in the Spring and Autumn Period (770-...
century. It held that ordinary people could use their computers as tools for liberation, education and enlightenment. Like most Utopian thinking, the idea of an amateur encyclopedia was, for many years, treated as a bit of a joke. “A fewendorseWikipedia heartily. This mystifies me,” wrote ...
Understanding the Asian Century Asia was a major driving force in the world's economy for much of human history. In the 19th century, western economies dominated, powered by theIndustrial Revolution. Over the past few decades, the expectation that Asia will regain its place as the engine of ...
"China's Twenty-Four Solar Terms didn't appear all at once, but developed over a long period. In the Western Zhou Dynasty (c.11th century-771 BC) the two solstices and equinoxes appear. Then in the Spring and Autumn Period (770-476 BC), the start of the four seasons were added to...
During the 20th century, petrol cars got bigger, heavier, and faster. They needed more fuel, and it 59. caused more air pollution. For years, car makers didn’t worry about pollution. They didn’t worry about the amount of petrol cars used, 60.either. But when people began to realise...
Big Think(以下简称BT):为什么说20多岁是人生的关键?Dr. Meg Jay: Our 20s are the defining decade of adulthood. 80% of life's most defining moments take place by about age 35. 2/3 of lifetime wage growth happens during the first ten years of a career. More than half of Americans are...
The trend may seem little more than an effect of 21st century globalization. As more individuals of mixed descent achieve fame (think Norah Jones and Tiger Woods), it seems natural that society would embrace the mixed look. Media exposure, however, doesn’t fully explain the perception of hapa...