根据Whatareweatherballoons?Weatherballoonsareoneoftheusefulwaystostudyweather.Theyaremadeoflatex orakindofrubber.Theyarefullofhydrogenorhelium.(气象气球是什么?气象气球是研究天气的有用方法之一。它们是由乳胶或一种橡胶制成的,它们充满了氢气或氦气。)及通读全文可知,本文介绍了气象气球及其作用。故填weather。(2...
What Are Weather Balloons?
Part Two What Is a Weather Balloon阅读下面短文,从每题所给的 A、B、 C、D四个选项中,选出最佳选项。Weather balloons are sometime mistaken for unidentified fling objects, but they are actually floating weather stations,scientific instruments with the job of measuring temperature,humidity and atmospheri...
As the room flooded with light, Sally's eyes widened in surprise and disbelief. The classroom was decorated with balloons and streamers, a beautiful cake sat on the teacher's desk, and in the corner, a pile of pre...
Scientists study the Earth's atmosphere by launching weather balloons. What kind of data can these balloons mainly collect? A. Only the amount of rainfall. B. Atmospheric pressure, temperature and humidity. C. The number of clouds in the sky. D. The speed of the E. arth's rotation. ...
根据上文“Weather balloons (气球) can help scientists find it out.”可知,气象气球可以帮助科学家确定天气情况,应是有用的方法。故选B。 (2)题详解: 句意:它们记录风速和温度,并将信息发送给科学家进行研究。 exercise锻炼;business商业;research研究。根据“They record wind speed and temperature and send...
My kids screamed with joy. We baked, iced and sprinkled for most of the day. Candles on the cake! Balloons on the walls! Flowers on the table! Two hours before my husband came back home from another job interview, my daughter climbed up to grab a glass vase from a high shelf. It ...
arefacingalong-termlaborshortage. 13 who sufferfromeconomiclossesduetolaborshortage. Second, 14 Theproblemsfrom climate change,suchasextremeweather,shrinkingagriculturallandsandthelakeofnaturalresources, makeinvasion(创新)andefficiencyallthemore urgent. 15 Theglobalmarketforagricultural robots,expected haveahigher...
Calculate the pressure in atm of a balloon filled with 7.5 g of helium gas if the balloon's volume decreases to 7.5 L. Suppose the balloon's pressure and volume are originally 799 mmHg and 15 L. If the pressure on a 100-L...
Weather Conditions:For outdoor events, durability becomes key. Foil balloons are less prone to popping in the wind or changing temperatures compared to latex ones. Budget:Set a clear budget. Latex is cost-effective but might require more frequent replacements for prolonged displays, whereas ...