Tellingly, Trump did not come back with an offer of sweeteners to promote investment. Instead, he threatened to block ExxonMobil investment in Venezuela.
"I'm just obsessed with trivia. I used to want to be a chaser on The Chase."
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正因如此，科学家在短时间里面，就可以观察到太空经历对小鼠繁殖和后代健康的影响。
Games and physics simulations need to detect which objects are touching or overlapping. With nnn objects, checking every pair is O(n2)O(n^2)O(n2) comparisons, which gets expensive fast. A hundred objects means roughly 5,000 pair checks. A thousand means nearly 500,000.