【题目】设集合A={1,3,a},B={1,a2-a+1},且AB,则a的值为________.
科目:高中地理 来源:湖北省襄阳市2017届高三下学期第三次适应性考试地理试卷 题型:选择题
石羊河流域是我国西北地区重要的内陆河流域,南靠祁连山山脉,北邻腾格里和巴丹吉林两大沙漠。据近55年统计发现:石羊河流域年平均结冰期的空间分布具有明显的地域性。结冰期是指当年下半年第一次结冰出现(结冰初日)到翌年上半年最后一次结冰结束(结冰终日)所持续的日数。右图为石羊河流域年平均结冰日数分布图。读图回答下列问题。
1.石羊河的汛期出现在
A. 春季 B. 夏季 C. 秋季 D. 冬季
2.下列四地结冰初日最早的是
A. 永昌 B. 民勤 C. 天祝 D. 凉州
3.影响石羊河流域年平均结冰日数空间差异的主要因素是
A. 气候 B. 海拔 C. 坡向 D. 纬度
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科目:高中地理 来源:山东省潍坊市2016-2017学年高二下学期摸底统考(5月)高二地理试卷 题型:选择题
2017年4月,国家决定规划建设雄安新区,该区域地处保定城区与北京、天津之间,涉及河北省保定市的雄县、容城、安新3县及周边部分区域。下图为京津冀区域图。据此完成下列问题。
1.国家积极推进雄安新区建设的主要目的是
A. 加快我国城市化进程
B. 解决京津冀地区的雾霾问题
C. 分散北京的非首都职能
D. 逐步把新区建成我国新的行政中心
2.与保定城区相比,在雄县、容城、安新3县规划建设雄安新区的主要原因是
A. 交通便利 B. 开发程度低 C. 基础设施完善 D. 农业发达
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科目:高中地理 来源:内蒙古2016-2017学年高一下学期第二次月考地理试卷 题型:选择题
读“我国某地农业结构调整示意图”,完成下面小题。
1.该地农业结构调整后最可能出现的情况是: ( )
A. 农产品商品率降低 B. 市场适应性增强
C. 粮食作物减少,经济效益下降 D. 劳动力需求量减少,就业机会减少
2.图中反映该地发展花卉种植的最有利区位因素是: ( )
A. 资源丰富 B. 地价便宜
C. 交通便利 D. 政策支持
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科目:高中地理 来源: 题型:
【题目】
We first met on a train in 2010. We both felt immediately that We each other for years.
A. knew
B. have known
C. had known
D. know
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科目:高中地理 来源: 题型:
【题目】Dear Liz,
My stay in Thailand has certainly been the experience of my life.
Life is busy and exciting. Bangkok is just like any other big city with a population of 10 million and heavy traffic. I’m very lucky because my host family is in a nice quiet area outside the city. There are Mr. and Mrs. Phairat, their son Sanan, who is 18, the daughter Chinda, who is 16, and Grandpa and Grandma.
I go to an international school with Sanan and Chinda. The school teaches about 70 percent in English, and 30 percent in Thai. I've learned some spoken language, but Thai writing is very difficult, The cooking lesson is my favourite. I'm learning all about Thai food and culture People don’t use chopsticks here, but spoons and forks. When I come back, I'm going to cook you a real Thai meal.
Last weekend we visited some temples. We also drove to Pattaya beach near Bangkok. I thought it was great, but Sanan and Chinda say that next month they’re taking me to Phuket Island, where the beaches are even more beautiful. The month after next, we’re going to travel to Mr. Phairat’s hometown in the north of Thailand. The Phairat’s own land there, and they have two elephants. I’m going to ride those elephants — and even wash them. Sanan and Chinda say it’s really fun.
I'm amazed by everything in this country, especially by the elephants. Elephants are an important part of Thai culture and way of life. They have been a traditional symbol of Thailand for many years in times of war and peace. In the seventh century, a Thai king trained 20, 000 elephants for battle.
I’ll tell you all about my Thai boxing lessons next time I write.
Love,
Mandy
【1】 How many family members are there in Mandy’s host family?
A. 4
B. 5
C. 6
D. 7
【2】 Next month, Mandy is going to visit__________.
A. Pattaya beach
B. Phuket Island
C. Phairat’s hometown
D. Bangkok
【3】 From the letter we know that Mandy is__________ when she stays in Thailand.
A. bored
B. quiet
C. excited
D. proud
【4】 What is the letter mainly about?
A. Study trip in Thailand
B. Food culture in Thailand
C. Elephant riding in Thailand
D. International schools in Thailand
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