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Are you a crazy chocolate fan? Have you heard about Hershey’s Kisses? Do you love the movie Charlie and the Chocolate Factory ? If your answer was, 'yes', to any of the questions, then my experience will make you jealous (妒忌的). I just went to the famous Hershey Chocolate Factory! The other day we drove from Washington DC to the small town of Hershey, Pennsylvania. When we arrived at the factory, we realized that this was much more than just a factory. The whole town is a chocolate-themed amusement park. The sweet smell of chocolate is on every street corner. There are even road signs that say things like, 'Chocolate Ave(大道)' and 'Cake St.'. As we were walking towards the park, Jason, our tour guide, began telling us about this quiet little town. Hershey chocolate has been a brand in the world over the past hundred years. It is the biggest company that makes and sells chocolate in America,' he started. 'I guess you get the chocolate in China, don’t you?' I nodded(点头) without thinking. How could I possibly not know those lovely little candies when I’ve been eating them all these years? Jason went on, 'The factory first started on a small farm. It developed very fast. So they built this town for factory workers to live in. Then they built hotels, hospitals, stadiums(体育馆), theaters and even museums with the theme of chocolate. Isn’t that cool?' 'Yes, a hundred times yes!' I yelled (叫喊 )with delight. 小题1: What did the writer mainly talk about? A.Her wonderful trip to a chocolate factory. B.What kind of chocolate she likes best. C.How chocolate is produced in the factory. D.Why she likes chocolate so much. 小题2: What was the small town of Hershey like? A.It was very beautiful. B.It was like a big city. C.It was very colorful. D.It was a theme park. 小题3:Which of the following statements is TRUE? A.Hershey Chocolate has not been introduced to China yet. B.Hershey was a German company. C.Hershey Chocolate developed very fast. D.Hershey Chocolate first started on a big farm. 小题4: What does the underlined word mean? ______. A.乐队 B.品牌 C.一种 D.帮派 小题5: What can we know from the writer’s answer to the guide? A.The writer had never heard about Hershey Chocolate. B.The writer didn’t want to visit the factory any more. C.The writer had visited the factory before. D.The writer couldn’t wait to visit the factory.
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【简答题】国民生产总值(gross national product,GNP)
【单选题】13) Gross national income (GNI), the broadest measure of economic activity for a country, is defined as the ________.
A.
total of all consumption and investment that takes place in a national economy
B.
income generated in one country, regardless of who owns the productive assets
C.
total of all economic activity in one country less services, such as government administration, health services, and education
D.
income generated by both total domestic production and the international production activities of national companies
【单选题】傅里叶数表示非稳态导热过程的无因次时间,当该准则数大于 时,可用诺谟图计算非稳态导热。
A.
0
B.
0.2
C.
3
D.
1000
【单选题】下列关于基因工程的叙述,错误的是 ( ) A .目的基因和受体细胞均可来自动、植物或微生物 B .限制性核酸内切酶和 DNA 连接酶是两类常用的工具酶 C .人胰岛素原基因在大肠杆菌中表达的胰岛素原无生物活性 D .载体上的抗性基因有利于筛选含重组 DNA 的细胞和促进目的基因的表达
A.
B.
C.
D.
D
【单选题】下列关于基因工程的叙述,正确的是( ) A .目的基因和受体细胞均可来自动物、植物或微生物 B .限制性核酸内切酶、 DNA 连接酶及载体是基因工程中常用的工具酶 C .若检测培育的抗虫棉花是否成功,可用相应的病菌侵染棉花植株 D .载体上的抗性基因有利于检测目的基因是否插入到受体细胞的染色体上
A.
B.
C.
D.
D
【判断题】DNA 连接酶常用来连接载体 DNA 和外源性 DNA 。
A.
正确
B.
错误
【单选题】浮点数也可以表示整数(小数点后为0的小数),Python提供整数和浮点数两种数据类型的考虑是()
A.
整数型和浮点数型的存储格式和处理方式都不同,若能用整数型就不采用浮点数型
B.
冗余设置的目的是方便用户根据个人喜好进行选择
C.
整数型运算速度快,方便用户根据速度选择
D.
浮点数运算精度高,方便用户根据精度
【单选题】Oracle数据库常用的数据类型中,number(m,n)数据类型中,可以表示整数位数的是()
A.
m
B.
n
C.
m-n
【简答题】国民生产总值(gross national product,GNP)
【单选题】下列有关基因工程的叙述,正确的是: [     ]
A.
DNA连接酶的作用是将两个黏性末端的碱基连接起来
B.
目的基因导入受体细胞后,受体细胞即发生基因突变
C.
目的基因与运载体结合的过程发生在细胞外
D.
常使用的运载体有大肠杆菌、噬菌体和动植物病毒等
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