题目内容
为了判断改进后的日产量是否比原来的200(千克)有所提高，抽取了20天的日产量数据，发现日产量的平均值为201(千克)，下列结论正确的有()。
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证券发行人将证券发行给社会投资者，这一切是由证券承销商来完成的。因此，证券发行人就是证券承销商。()
罚款是治安管理处罚中最常见的制裁方法。()
下列说法中正确的是()。
听力原文： The Sierra de Aracena in the northwest of Andalucia boasts one of the most beautiful rural landscapes in the region. One of the greenest comers of the sun-baked south, the peaks and valleys here are rich in forests of sweet chestnuts and cork oaks. In spring, wild flowers carpet the meadows, attracting a wealth of bird and insect life.
Despite its outstanding natural beauty, the Sierra de Aracena is barely touched by the tourist trail, and even Andalucians are largely unaware of its hidden treasures.
But take time to explore this region, and you're guaranteed not only space and tranquility, but the warmest of welcomes, particularly in the old-fashioned whitewashed villages, scattered throughout the highlands.
Peaks and valleys in the Sierra de Aracena are rich in ______.
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