1. We learned that animals may make choices based on aesthetics.
3. E-cigarettes first started becoming popular in 2012. They work by heating a nicotine fluid to mimic a real cigarette. Their invention is usually credited to Chinese pharmacist Hon Lik, who reportedly created it after he dreamed that he was drowning in a cloud of vapor. His father had died of lung cancer caused by cigarettes. He himself was an unrepentant smoker who had unsuccessfully tried quitting by using a nicotine patch.
5. 单词compromise 联想记忆：
6. Over at Huffington Post Mark Gongloff warns: That 'dramatic downgrade of U.S. economic growth in the first quarter revealed the economy's lingering weakness, exposed the folly of Washington's austerity obsession and slapped the Federal Reserve's newfound optimism right in the face.' And with politics deteriorating, it'll get worse.
西西软件园 If 2017 was the year of fake news, 2018 is shaping up to be one of fake data. And just as fake news comes in many varieties — real news dubbed by the US president as fake, as well as nonsense gaining huge audiences on social media — so does fake data.