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On June 20th, we observe World Refugee Day. It is an 1)____ to highlight the plight of refugees around the world, commend their resilience, and express 2)____ to their hosts. According to the 1951 Convention on the Status of Refugees, a refugee is someone who, "owing to a well-founded fear of being persecuted for reasons of race, religion, nationality, membership of a particular social group or political opinion, is outside the country of his nationality, and is unable to, or owing to such fear, is unwilling to avail himself of the protection of that country." In 2016, the world's refugee population topped 22 million, more than ever before. The 3)____ come from all walks of life, singly and in families, across a wide spectrum of ethnic, religious, economic and educational backgrounds. But they have one thing in common: all have been forced from their homes and homelands. They flee to escape persecution or violent 4)____, including terrorism. Often, people flee because their towns have been turned into battlefields and staying means nearly certain death. This is a global 5)____ that is affecting more men, women, and children than ever before and for longer and longer periods of time. As we observe World Refugee Day, we are reminded that as long as violence and persecution continue, there will be a 6)____ need for 7)____ humanitarian action and a global response. That is why the United States is proud to continue its leadership in providing humanitarian aid around the world. This 8)____assistance protects refugees, feeds those who might otherwise starve, shelters those who would otherwise be exposed to the elements, and ensures 9)____ to safe clean water and basic healthcare. As U.S. Ambassador to the U.N. Nikki Haley wrote in the Wall Street Journal, we are committed to easing the suffering of Syrian refugees and supporting the countries that host them. In the face of dire needs, horrible violence, and 10)____ persecution, our commitment to the world's most vulnerable people remains a critical component of U.S. policy.
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【简答题】读沿某纬线我国地势剖面图,回答下列问题。(10分) ⑴ 据上图可以判断出我国地势的总体特征是 。这种地势特征对我国河流有何影响?(4分) ⑵ 我国地势各阶梯上分布着不同的地形区。观察青藏高原和黄土高原景观图,回答:青藏高原平均海拔在4000米以上,有“世界屋脊”之称,地表特征是 ;黄土高原的地表特征是是 。 (3)右图是该高原某地多年来的气候资料,据图分析形成该地区生态环境问题的气候原因是什么? ...
【单选题】以下不属于典型黄土地貌的特征是哪项?()
A.
沟谷众多、地面破碎
B.
侵蚀方式独特
C.
沟道流域内多级地形面
D.
仅依靠风力作用堆积
【单选题】以下哪一项不是黄土的特征
A.
结构疏松
B.
具有层理
C.
多孔隙
D.
有垂直节理
【单选题】各具特色的房屋建筑是构成旅游资源的一大景观,以下地区特色房屋建筑与地理环境特征组合不正确的是() ①西南边陲的竹楼——气候炎热多雨,潮湿日期很长 ②黄土高原的——降水少,气温的日较差和年较差均大,风沙多而猛烈 ③东北的暖屋——冬季长而严寒,夏季短而凉爽,日较差和年较差大,降水稀少 ④华北的四合院——冬季寒冷,夏季炎热,冬春两季多风沙
A.
①②
B.
②③
C.
①③
D.
②④
【简答题】蓝白斑筛选的原理是什么?
【单选题】各地地理环境不同,房屋的结构与形式有所不同,各具特色的房屋建筑构成旅游资源的一大景观,以下地区特色房屋建筑与地理环境特征组合不正确的是()。
A.
西南边陲的竹楼——天气凉爽
B.
黄土高原的——降水少,气温的日较差和年较差均大,风沙多而猛烈
C.
东北的暖屋——冬季长而严寒,夏季短而凉爽,日较差和年较差大,降水极少
D.
华北的四合院——冬季寒冷,夏季炎热,春冬两季多风沙
【单选题】以下不是黄土特征的是:
A.
质地均一
B.
结构松散
C.
空隙在55%以上
D.
富含碳酸钙
【简答题】基因工程中蓝白斑筛选的原理是什么?
【简答题】蓝白斑筛选的原理是什么
【单选题】各具特色的房屋建筑是构成旅游资源的一大景观,以下地区特色房屋建筑与地理环境特征组合不正确的是 1西南边陲的竹楼--气候炎热多雨,潮湿日期很长 2黄土高原的--降水少,气温的日较差和年较差均大,风沙多而猛烈 3东北的暖屋--冬季长而严寒,夏季短而凉爽,日较差和年较差大,降水稀少 4华北的四合院--冬季寒冷,夏季炎热,冬春两季多风沙
A.
①②
B.
②③
C.
①③
D.
②④
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