trie的用法

The human population on Earth grows larger each year. As a result,　1　. Because of climate change (气候变化),growing more food is becoming even more difficult.When farmers tried to grow more food in the past, they would use farming methods that weren\'

2023全国乙卷 AJacqueline Félicie de Almania(c. 1322)highlights the suspicion that women practicing medicine faced. Born to a Jewish family in Florence, she moved to Paris where she worked as a physician and performed surgery. In 1322 she was tried for

2024年北京卷AThe language exchange programme allows students in pairs to communicate in two different languages they wish to share and learn each week. Students record short entries after each partner meeting noting the language skills practised and th

Passage OneQuestions 46 to 50 are based on the following passage.Simulators are most often utilized within industries such as nuclear power, aviation and surgery where failure results in disastrous consequences. To maximize the value from a simulation

About 23% of the global population lives in absolute poverty. In developing countries there is a low life expectancy, a high infant 26 rate, high levels of unemployment and illiteracy, nutritional levels below acceptable standards and widespread diseas

African countries must get smarter with their agricultureA) On the hills of central Kenya, almost lime-green with the sparkle of tea bushes in the sunlight, farmers know all about climate change. “The rainy season is no longer predictable,” says one.

Passage TwoQuestions 51 to 55 are based on the following passage.A few weeks ago,a well-meaning professor tried to explain the physiological process behind viruses and the human body in a tweet and was immediately criticized for a mistake in his inform

Passage TwoQuestions 51 to 55 are based on the following passage.Every five years, the government tries to tell Americans what to put in their bellies. Eat more vegetables. Dial back the fats. It’s all based on the best available science for leading a

Companies Are Working with Consumers to Reduce WasteA) As consumers, we are very wasteful. Annually, the world generates 1.3 billion tons of solid waste. This is expected to go up to 2.2 billion by 2025. The developed countries are responsible for 44%

Many European countries have been making the shift to electric vehicles and Germany has just stated that they plan to ban the sale of vehicles using gasoline and diesel as fuel by 2030. The country is also planning to reduce its carbon footprint by 80-

Countries Rush for Upper Hand in Antarctica[A] On a glacier-filled island with fjords (峡湾) and elephant seals, Russia has built Antarctica\'s first Orthodox church on a hill overlooking its research base. Less than an hour away by snowmobile,Chinese l

Passage OneQuestions 46 to 50 are based on the following passage.Facing water shortages and escalating fertilizer costs, farmers in developing countries are using raw sewage(下水道污水)to irrigate and fertilize nearly 49 million acres of cropland, acco

Passage TwoQuestions 51 to 55 are based on the following passage.Plant-based meats are coming soon to a dinner table near you, but do they deserve a spot on your plate?If you tried a vegetable burger years ago and dismissed it as rubbery and flavorless

Passage OneQuestions 46 to 50 are based on the following passage.Our society places a high value on physical beauty. Americans spend an average of over $722 each year on their appearance. One in ten Americans has tried to look like a star.There\'s nothi

“Phantom” Traffic Jams Are Real- And Scientists Know How to Stop ThemA) Traffic jams are a common problem of most big cities, either in developed or in developing countries, but one kind of traffic jams in particular can be especially frustrating. Th