Why are tennis balls fuzzy? So they... A) feel like a hug. B) don't go too fast or bounce too far. C) don't scratch the court. Tennis balls are made of rubber. Without a felt covering, they would bounce too far and move too fast. The fuzz creates drag in the air and frict...
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Also, a lower temperature stops air inside the ball from leaking out(漏气), said the website Tennis Hold. This means it will bounce for longer. Tennis ball companies say that the best temperature to store tennis balls is 20℃. This is the temperature of the fridges you can see at the ...
根据“Tennis ball companies say that the best temperature to store tennis balls is 20 ℃.”可知,储存网球的最佳温度是20℃。故选B。(4)题详解: 推理判断题。根据“So don’t rush to put your tennis balls in your fridge at home. It’ll be too cold!”可知,所以不要急于把你的网球放在家里的...
12 D 细节理解题。 根据文章最后两句“So don't rush to put your tennis balls in your fridge at home. It'll be too cold!" 知,不能把网球放在低温的冰箱里。 故选D 反馈 收藏
Tennis balls are instantly recognizable thanks to their bright yellowish-green color andfuzzy exterior, but have you ever wondered why they come in a can and why that can is pressurized? If so, then wonder no more because all will soon become clear. ...
9、---Why not ___some tennis balls for your friend? ---No, they’re not creative enough. A.buy B.bought C.buying D.to buy 试题详情 科目:来源:czyy题型: 8、--- Where is Mr. Read? ---He ___to Singapore for a holiday with his family. A.goes B....
Jean King National Tennis Center. If you've ever played tennis on a court adjacent to other courts, you know how easily your ball can go astray and end up on one of the other courts. The numbers on the balls, according to Kraft, are to help players identify their balls when this ...
You'll notice that the results for the tennis balls are displayed under two headings "Laminar" and "Turbulent". Laminar and turbulent are terms which refer to the boundary layer of the fluid flow, which in simple terms is flow very close to the surface of a solid body. Laminar flow is ...