Earth Day is one of two days, depending on when you choose to observe it. Some people celebrate Earth Day on the first day of Spring, which is the vernal equinox that occurs on or around March 21st. In 1970, U.S. Senator
Falcon 1’s ascent was entirely propelled by one ragingly powerful SpaceX-invented engine, called the Merlin.8 Merlins are rad. One Merlin engine has a thrust of over 73 tons—i.e. it can lift 73 tons of weight—which means if you stacked 40 cars on top of the engine in that pic...
aCharles Jung invented fortune cookies. 正在翻译,请等待...[translate] a那时的所有幻想都变成了空想 At that time all fantasies all turned the fantasy[translate] aI am something in the sky.I go round the Earth.You can often see me at ningt as a circle or part of a circle.What am I?
Why was the Mayan calendar made?Ajq'ijab':The Ajq'ijab' were the Mayan priests, shamans, and other religious leaders who were responsible for the Mayan calendar. Although the Mayan Empire is no longer around, the Mayan people are still a large ethnic group in Central America, and members...
neuroscientist explains asmr's effects on the brain & the body why top scientists are pretending an asteroid is headed for earth epidemiologist answers common monkeypox questions bill nye breaks down webb telescope space images how this humanoid robot diver was designed every trick a pro geoguessr ...
社区经理办理金融分期合约业务完成收款，用户侧提示扣款成功，营业系统提示“收到扫码或刷卡成功”，但MISPOS收银台未提示交易成功或MISPOS提示“未打印交易小票”时，社区经理可通过点击MISPOS收银台“小助手”里的（ ）完成退款。
aThe moon is so far from the earth that even if huge trees were growing on the mountains and elephants were walking about, we could not see them through the most powerful telescopes which have been invented. 正在翻译,请等待... [translate] ...
There was a heavy footprint___2___ the earth in one of the flower beds. Tom was___3___going to blame(责怪)the postman___4___he noticed that one of the curtains in the front room___5___was out of the place. He walked___6___the front door and opened it quietly. He ...
The debate over the Sphinx’s age and origin continues to this day. The official standpoint is that it was built around 2500 BC by the dynastic Egyptians. However,experts of various fields on both sides of the debate still argue over the truth of the issue. ...
建立完善以县妇幼保健机构为龙头，乡镇卫生院、社区卫生服务中心为枢纽，村卫生室为基础的基层儿童保健服务网络，每所乡镇卫生院、社区卫生服务中心至少配备1名提供规范儿童基本医疗服务的儿科医生，至少配备2名专业从事儿童保健的医生。（ ）