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The U.S. has reached another grim milestone amid the coronavirus pandemic, as deaths linked to the disease topped 100,000 on Wednesday, according to a database kept by Johns Hopkins University.All U.S. deaths linked to the virus have occurred since February — a span of just three months.A model put together by the 328

The US Air Force ordered immediate inspections of its entire fleet of B-1 bombers Thursday over safety concerns related to its "drogue chute system" which is used to right the aircraft's ejection seat prior to the seat's main parachute deploying.While none of the planes are being allowed to fly, the order is technically not an official grounding of the fleet, as each individual aircraft will be allowed to immediately return to flying operations upon inspection."The safety stand-down will afford maintenance and Aircrew Flight Equipment technicians the necessary time to thoroughly inspect each aircraft," the Air Force's Global Strike Command said in a statement."As these inspections are completed and any issues are resolved, aircraft will return to flight," the statement added.Global Strike Command would not estimate how long the inspections would take.Air Force officials say the drogue chute problem is unrelated to a previous issue with the aircraft's ejection seat which had led to a similar safety stand-down last year.All of the Air Force's 61 B-1 bombers are currently stationed in the US so the order will not impact operations.The B-1 is a conventional bomber and was used to conduct airstrikes against Syrian military targets in 2018 following the regime's use of chemical weapons. 1313

The sun still hasn’t come up in Sacramento, California, as Paul Harrison makes his safety checks for the school bus he drives.The Twin Rivers school district bus yard is busy just before 6 a.m. All the drivers are getting ready to pick up the kids.But Harrison is driving a slightly different model than some of his co-workers.“I believe it’s been about three years we’ve been driving these electric buses," he said. "There’s no gas, there’s no emissions."His is one of 30 electric school buses owned by the district, about half their fleet. His boss, Tim Shannon, hopes one day the district's entire fleet will be electric.“As the range gets better on electric school buses have a 100 percent electric fleet within the next three and a half to four years," said Shannon.While the overall goal is to help reduce the districts carbon footprint, Harrison says he notices differences while he drives.“When you’re driving this bus, there’s no diesel, there’s no fuel to work with, there’s no natural pumps that you have to hook up,” said Harrison.And so do the students he drives to school every day.“The electric buses, they don’t have that smell and you can actually kind of breathe,” said Carrissa Stevens, an 8th-grader at Symthe Middle School. She likes the fact that buses don’t smell like diesel and she likes that she’s doing her part to help the environment.“If we didn’t take care of the environment, I don’t think any of us would be here. But I also care about the animals and the plants and all that because it’s important,” said Stevens. And she may not know it, but she’s also helping her parents and other tax payers save some money.“I would tell you the current savings with the buses we have is close to 0,000 a year,” said Shannon.And he only expects the savings to increase over time and as they get more buses. While there is a heavy start up cost associated with buying electric buses and installing chargers, they’re much cheaper to maintain than their diesel counterparts.“You’re getting almost triple the tire life out of a tire. You’re getting over double the break life out of the breaks because of regenerative breaking," explained Shannon. "The average mile it costs us to drive an electric bus is between The Trump administration is planning a costly Independence Day speech at the Lincoln Memorial, despite its failure to pay off million in debt from the 2017 inauguration, 185.15 and There were fewer people killed last year in alcohol-related crashes in 2018, according to the National Highway Transportation Safety Administration. The 165.19. With the diesel buses between <云转化_句子>.82 and <云转化_句子>.86."And while savings are great the most important thing is getting the kids to and from school safe.“There’s nothing that motivates me to come to work regardless of how I’m feeling. You know that these 40, 50 kids are here waiting and depending on you because you’re there everyday at the same time," said Harrison. "They know you by name. They look forward to seeing you; you look forward to seeing them. And that says a lot." 2733

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来源：资阳报