WASHINGTON — Maryland Sen. Chris Van Hollen is leading the U.S. Senate fight for D.C. statehood even as his state competes ...

The top federal prosecutor for Washington, D.C., says pardoning rioters who stormed the U.S. Capitol four years ago can’t ...

WASHINGTON (7News) — The D.C. government is dropping $1.5 million on a heated inauguration viewing stand for next Monday’s ...

证券之星消息，杰华特(688141)01月14日在投资者关系平台上答复投资者关心的问题。 投资者：请问公司有产品可以应用于人形机器人吗？

February is Black History Month in the United States. To celebrate, the annual DC Power anthology is returning once again ...

Preparations for Monday’s presidential inauguration are well underway, with security measures going into place across the ...

On Friday, the D.C. Attorney General’s Office filed a lawsuit accusing federally owned agencies and facilities of having ...

WASHINGTON (Reuters) - For four years, the bar at the Trump International Hotel in downtown Washington was the place to be ...

Hudson River Swim founder and retired Navy SEAL Bill Brown joins 'Fox & Friends Weekend' to discuss the plan to gather ...

电动汽车（EV）上安装了大型高电压的锂离子电池和发动机车辆上也使用的低电压铅酸电池。两种电池都需要充电，锂离子电池需要在充电站上充电，铅酸电池需要从锂离子电池充电。此时，将一定的直流电转换为不同直流电的设备就是DC/DC转换器。我们将就DC/DC转换 ...