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图所示的体温计的示数是____ °C
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36.6

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    Here are three best destinations for you to discover in 2018 if you ho heart-stopping adventure, a close-up look at history or the perfect meal.

    Los Cabos, Mexico

    Located at the tip of the Baja Peninsula, the two small colonial(殖民地的) towns of Cabo San Lucas and San Jose del Cabo have become the hottest vacation destinations in Mexico in recent years. With wide, original beaches, lively nightclubs, natural resorts, and a farm-to-table food scene, the oasis(乐园)of Los Cabos is drawing tourists in record numbers. As a result, the hotel scene is booming, with a lot of new developments and repairs completed this year.

Zambia

    Until now, Zambia has had little recognition as one of Africa's great safari(狩猎远征) destinations. Yet experts know it as the birthplace of the walking safari. In South Luangwa National Park, visitors can expect to see more animals than baobab trees, while Liuwa Plain National Park is the setting for the world's second-largest wildebeest(角马) migration, when tens of thousands of the creatures head across the plain from neighboring Angola.

Brussels, Belgium

    Visitors may want to return to the Belgian capital in 2018 to visit two cutting-edge museums. The Millennium Iconoclast Museum of Art opened to show contemporary art from around the world. There's also the Citroen Cultural Centre, which will launch its first exhibition in May. The JAM Hotel with exposed brickwork and concrete beams housed in a former art school, is the perfect place for culture-lovers to stay. don't leave town without experiencing beer culture at youthful breweries(啤酒厂) like Brasserie de la Senne or Brussels Beer Project.

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精准预测天气有多难

    ①人们渴望预知天气变化,真正做到“未雨绸缪”,但“天有不测风云”,精准预测天气确实不是一件容易的事。

    ②影响天气预报准确率的基本原因是大气运动自身具有随机性。大气变化是一个复杂的运动过程,充满了各种各样的可能性。对此,美国气象学家爱德华•罗伦兹有个生动的比喻:“巴西丛林的蝴蝶扇动一下翅膀,可以引起美国德克萨斯州的飓风。”这就是大家熟知的“蝴蝶效应”。在随机性的多重影响下,任何一种预测结果,都是要担风险的。人们对天气形成初始状态的观测,总是会有某些误差,而哪怕是很小的误差,也会使预测结果大相径庭。

    ③各种复杂地形也会给大气运动带来影响。如青藏高原地势较高,受到太阳辐射后温度上升,尤其是夏天,它便成为高空大气环流的一个热力源;当气流经过时,要么从上面越过去,并被加热,要么从旁边绕流过去,从而形成天气系统比如西南涡等,这些,使得整个大气环流形势变得十分复杂。可见错综复杂的地形地貌,也是个爱添乱的“捣蛋鬼”。

    ④何况,不同的天气类型,预报准确率差异很大。像高温、寒潮、梅雨这些空间范围较大、时间尺度较长的天气预报准确率就比较高。全国24小时晴雨预报和最高、最低,温度预报,能够做到“八九不离十”。但有些天气发生得突然,具有很强的局部地域性特征,例如强对流天气,也就是短时间内发生的冰雹、强降雨、强雷电、龙卷风等,预报准确率就非常低。

    ⑤在多种因素的影响下,预报的难度当然就增大了。这如同玩拼图:如果只有8个板块,儿童也能拼出来;如果是800块,成人可以拼出来;但如果是8000万块,甚至更多,那“神”也都无法拼出来了。

    ⑥不过,随着计算机的普及和数值预报手段的改选,天气预报准确率正在不断升。英国气象局正在开发一种新的计算机模型,气象人员可以利用它发布面积仅为1平方公里地区的天气预报。不久的将来,人们可以即时获取更小区域内精确的天气信息。届时,气象学家发布温布尔登网球赛天气预报时,将不会像现在这样,只能预报温布尔登所在的伦敦东南部的天气,而可以把精确度定在比赛场地500米的范围内。