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单选题
Какая угроза наблюдается в образовательной среде?
A
Рост наркомании и алкоголизма.
B
Эпидемия психических расстройств.
C
Ухудшение работы с детьми и подростками.
D
Уменьшение числа экспертов Минобразования.
参考答案
参考解析
解析：
问题是：在教育领域出现了什么样的威胁？由原文第一段第二句可知，专家发现青少年吸毒现象和酗酒现象越来越严重。故正确答案为A。
问题是：在教育领域出现了什么样的威胁？由原文第一段第二句可知，专家发现青少年吸毒现象和酗酒现象越来越严重。故正确答案为A。
更多 “单选题Какая угроза наблюдается в образовательной среде?A Рост наркомании и алкоголизма.B Эпидемия психических расстройств.C Ухудшение работы с детьми и подростками.D Уменьшение числа экспертов Минобразования.” 相关考题
考题
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A的列向量组线性相关，B的行向量组线性相关B
A的列向量组线性相关，B的列向量组线性相关C
A的行向量组线性相关，B的行向量组线性相关D
A的行向量组线性相关，B的列向量组线性相关
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营养物质经肠道和门静脉吸收B
可以维持肠黏膜细胞的正常结构C
无严重代谢并发症，安全、经济D
无保护肠道屏障功能E
能很好地被机体利用，整个过程符合生理
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问答题Practice 10 Glaciers in Antarctica are melting faster and across a much wider area than previously thought, a development that threatens to raise sea levels worldwide and force millions of people to flee low-lying areas. Researchers once believed that the melting was limited to the Antarctic Peninsula, a narrow tongue of land pointing toward South America. But satellite data and automated weather stations now indicate it is more widespread. The melting also extends all the way down to what is called west Antarctica. By the end of the century, the accelerated melting could cause sea levels to climb by 3 to 5 feet-levels substantially higher than predicted by a major scientific group just two years ago. Making matters worse, the ice shelves that hold the glaciers back from the sea are also weakening. For years, the continent at the bottom of the world seemed to be the only place on the planet not experiencing climate change. Previous research indicated that temperatures across much of Antarctica were staying the same or slightly cooling. The big surprise was exactly how much glaciers are melting in western Antarctica, a vast land mass on the Pacific Ocean side of the continent that is next to the South Pole and includes the Antarctic Peninsula. The glaciers are slipping into the sea faster because the floating ice shelf that would normally stop them—usually 650 t0980 feet thick—is melting. And the glaciers' discharge is making a significant contribution to increasing sea levels. Together, all the glaciers in west Antarctica are losing a total of around 114 billion tons per year because the melting is much greater than the new snowfall. That's equivalent to the current mass loss from the whole of the Greenland ice sheet, New research found that melting glaciers will add at least 7 inches to the world's sea level—and that's if carbon dioxide pollution is quickly capped and then reduced.
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单选题药品外观质量检查有必要、有意义，其主要依据是（）A
药品外观能反映出药品的质量B
药品外观有的能反映出药品的质量C
药品外观能反映出药品的内在质量D
药品外观有的能反映出药品的内在质量E
药品外观有的能表示该药品的内在质量
考题
单选题各类休克的共同点为（）A
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有效循环血量减少C
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