中国2021年发射火箭55次，首次超越美国，成为年度发射次数第一。
中国人均预期寿命首次超过美国，达到77.3岁，而美国由于受新冠影响，预期寿命降低
1.8岁，为77岁。
中国EAST可控核聚变首次实现千秒级持续放电，大幅打破由自己保持的411秒世界纪录。
另有两条大概率会实现的：
2021年中国GDP大约会达到美国的78%，超过日本成为二战以后与美国GDP最接近的国家
。同时由于英国正式退出欧盟，使得中国GDP也超过了欧盟，正式成为世界第二大经济
体，比之前预计超越欧盟的时间提前了2-3年。
2021年中国人均GDP大约会达到1.25万美元，首次超过世界人均GDP的平均值以及东欧国
家人均GDP的平均值。
https://killer.sh Pre Setup Once you've gained access to your terminal it might be wise to spend ~1 minute to setup your environment. You could set these: alias k = kubectl # will already be pre-configured export do = "--dry-run=client -o yaml" # k get pod x $do export now = "--force --grace-period 0" # k delete pod x $now Vim To make vim use 2 spaces for a tab edit ~/.vimrc to contain: set tabstop=2 set expandtab set shiftwidth=2 More setup suggestions are in the tips section . Question 1 | Contexts Task weight: 1% You have access to multiple clusters from your main terminal through kubectl contexts. Write all those context names into /opt/course/1/contexts . Next write a command to display the current context into /opt/course/1/context_default_kubectl.sh , the command should use kubectl . Finally write a second command doing the same thing into ...
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