Look at the chart, select the statement that is TRUE about information of immigration(外来移民), emigration(迁移出境)and net migration(净移民)between 1999 and 2008.
The charts show the percentage of their food budget(预算)the average family spend on restaurant meals in different years. The graph shows the number of meals eaten in fast food restaurants and sit-down restaurants.
From charts and graph above, which of the following information is NOT TRUE?
Gabriel Garcia Morquez, who was awarded the Nobel Prize for Literature(诺贝尔文学奖)in1982, passed away at the age of 86 on April 17, 2014. The world paused to remember the cultural giant(巨匠).
Garcia Marquez was born in Colombia, but he spent most of his adult life in Mexico City. As one of the most famous writers, he was widely regarded as "a giant of 20h-century literature". Garcia Marquez wrote in a style called "magical realism(魔幻现实主义)". In such works, people live a daily life in a certain period of time in history. But meanwhile, magical things happen to them.
Garcia Marquez is best known for his 1967 novel, One Hundred Years of Solitude(《百年孤独》), which has sold about 50 million copies. It tells the tale of the small and isolated town of Macondo which was separated from the outside world-of its founding and its troubled history over a hundred years. The story is a metaphor(暗喻)for the development of Colombia since the 19th century. As Colombian President Juan Manuel Santos said, Garcia Marquez wrote about "the very essence(精髓)of the Latin American being".
Humans have been trying to explore and inhabit(定居)Mars. One of the many difficulties is the lack of oxygen on the red planet. Luckily, NASA's Perseverance Rover(漫游者)can help.
Using an instrument called MOXIE, the rover successfully took carbon dioxide(二氧化碳)from the Mar's atmosphere and turned it into oxygen. NASA has said it plans to conduct more MOXIE tests.
MOXIE ran its first test for around an hour, producing just 6 grams(克)of oxygen. That's enough to keep an astronaut going for about 10 minutes. It seems that it can be improved. It won't keep someone alive for long, but it's a key step forward in exploring Mars.
Not only could that oxygen be used to allow people to breathe, but it would also lighten the load for return missions to Earth, or for trips to other parts of the solar system. Rockets need oxygen to burn fuel during liftoff(起飞). Since we are now able to create oxygen on Mars, spacecraft can bring less of it from Earth, significantly cutting down their weight. Less weight means less overall fuel(燃料)needed to launch rockets.
Oxygen is the heavier part of rocket fuel. If NASA wanted to get four astronauts off Mars, the spacecraft would need 27. 5 tons of oxygen to do it. Keeping those four breathing for a year would require about one ton. At the rate MOXIE is going, producing 27. 5 tons would take more than 475 years. But future devices could be larger and more efficient than the 18-Kg MOXIE. One day, we will come up with a bigger plan for humans when we finally send them there to make enough oxygen.