for anyone needing to travel long distances on foot with a heavy load.The researchers point out...IMAGINE this: a soldier carries a 100kg backpack, a 20kg gun, and runs at a speed of 50km per hour ……

in Virginia. "It's hard to get up the stairs with my backpack, because it's so heavy."Ebelin is among... straps to carry them, but a number of students with heavy loads had switched to rolling backpacks ……

to buy?A. Seven. B. Nine. C. Six. 听第7段材料，回答第8至第10题。8. Which date does the man end up making a reservation on?A. March 20. B. March 21. C. March 22.9. Which kind of room would the man prefer?A. A non ……

Avoid Heavy School BagsDear parents,Please ensure the following, in order to avoid your children from carrying heavy school bags:1. Ensure that your child follows the timetable strictly. The latest ……

,” sophomore Elise Dahlstedt said of the only load she carries in her backpack.Stevenson officials said... want a container for these cookies.loadn. 负载物，负荷These backpacks are designed to carry a heavy load ……

carried two sacks. Who carried the heavier load and why?THE ANSWER: The farmer's load was heavier. His hired help only carries two sacks — both empty, while the farmer carries one sack, but his sack ……

. A host of new types of rockets, such as the Long March 5B, Long March 8, Smart Dragon 2 and Kuaizhou... March 5B, Long March 8, Smart Dragon 2 and Kuaizhou 11, will make their debuts (首秀). ……

, the Long March 5 successfully sent the Shijian 20 experimental satellite into orbit. At more than 8 tons...The Long March 5 Y3 is China’s strongest rocket. XINHUAThe Long March 5 Y3 is China&rsquo ……

to download Web pages on a phone than on computers. How long will US mobile phone users wait for a page to load? Read the table and find out. ……

  长征5B 首飞成功长征5B 首飞成功Congratulations to China’s Long March family. A new member of the family, the Long March 5B carrier rocket (运载火箭), successfully went into space on April 5 ……

The strongest animalQ: Which is the strongest creature (动物) in the world?A: The snail. It carries its house on its back.A heavy letterA postal clerk (职员) said to the man who had given him ……

;      8. folding and ironing      4. first load       ...;  8. folding and ironing      9. long-distance (phone) calls    10 ……

the United States’ Falcon Heavy and Delta IV Heavy.During the December launch, the Long March 5...The Shijian 20 satellite prepares for liftoff on a Long March 5 carrier rocket at Wenchang Space ……

the ship is safe for humans, the Shenjian-Long March 2F booster, which will propel the shuttle, features... of a Project 921-1 spacecraft. * January 9, 2001: Shenzhou 2 carries a monkey, dog and rabbit into space ……

industry. This year is going to be special for the industry. On June 25, the Long March-7 rocket... lift rocket Long March-5, which could allow China to put huge space station parts into low Earth ……