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How does a place become a World Heritage Site? It takes a lot of people to decide. 1)If a country wants one of its places to be on the World Heritage List, it has to ask UNESCO. The place must be important and special. UNESCO put the Great Wall on the list in 1987 because, it said, it was a great part of Chinese culture and beautifully made to go with the land.When a country asks, it must also make a plan for taking care of the place. 2)The World Heritage Committee of UNESCO talks about different places and decides whether to put them on the list. The committee meets every June. Many experts help the committee to decide. 3)After a new place goes on the list, UNESCO gives money to help keep it looking good.If a place is in serious danger, it may be put on the List of World Heritage Sites in Danger. UNESCO gives special care and help to those places. 4)Countries have to give UNESCO regular reports about places on the list. If UNESCO thinks a country isn’t taking good enough care of a place, the site will be taken off the list. 小题1:The passage implies that _____. A.becoming a world heritage site takes hard work B.a place with beautiful scenery is often on the World Heritage List C.a place which was taken good care of is often on the World Heritage List D.the Great Wall became a World Heritage Site for its long history. 小题2:If a place successfully becomes a World Heritage Site, the country _____. A.can ask UNESCO for more money and help B.should continue to take special care of it C.won’t take trouble of caring for it D.will try to put it on the List of World Heritage Sites in Danger 小题3:The passage mainly discusses ______. A.how the World Heritage Committee of UNESCO decides a World Heritage Site B.how the World Heritage Committee of UNESCO protects a World Heritage Site C.how the Great Wall becomes a World Heritage Site D.how a place becomes a World Heritage Site 小题4:The purpose of putting a place on the World Heritage List is _____. A.to attract more tourists from other countries B.to get more money and help from other countries C.to have it taken better care of D.to make it known to other countries
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【单选题】三倍体发生的原因是
A.
核内复制
B.
核内有丝分裂
C.
细胞不等分裂
D.
双雄受精和双雌受精
E.
孤雌生殖
【单选题】以下哪个方式可以缩短企业和用户之间的距离,提高用户的粘性
A.
关注
B.
互动
C.
传播
D.
销售
【单选题】若“选课成绩”表中成绩为以下六种之一:优秀、良好、中等、及格、不及格和其他,为提高数据输入效率,在表的设计视图中可以设置的属性是()
A.
显示控件
B.
有效性规则
C.
有效性文本
D.
智能标记
【单选题】三倍体发生的原因是
A.
核内复制
B.
核内有丝分裂
C.
细胞不等分裂
D.
双雄受精或双雌受精
E.
孤雌生殖
【单选题】若“选课成绩”表中的成绩为以下六种之一:优秀、良好、中等、及格、不及格和其他,为提高数据输入效率,可以设置字段的属性是( )。
A.
显示控件
B.
有效性规则
C.
有效性文本
D.
默认值
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A.
将四倍体植株与正常二倍体植株杂交,产生三倍体植株
B.
血红蛋白氨基酸排列顺序发生改变,导致某些血红蛋白病
C.
一对表现型正常的夫妇,生下了一个既白化又色盲的儿子
D.
染色体的某一片段移接到另一条非同源染色体上而引起变异
【单选题】三倍体香蕉不结种子的原因是 [     ]
A.
子房内无胚珠
B.
联会紊乱
C.
缺少生长素
D.
基因发生突变
【单选题】若“选课成绩”表中成绩为以下六种之一:优秀、良好、中等、及格、不及格和其他,为提高数据输入效率,在表的设计视图中可以设置“成绩”字段的数据类型是( )。
A.
查阅
B.
有效性规则
C.
有效性文本
D.
附件型
【单选题】下列变异的原理一般认为属于基因重组的是 [     ]
A.
将转基因的四倍体与正常二倍体杂交,生产出不育的转基因三倍体鱼苗
B.
血红蛋白氨基酸排列顺序发生改变,导致某些血红蛋白病
C.
一对表现型正常的夫妇,生下了一个既白化又色盲的儿子
D.
目的基因被误插入受体基因的非编码区,使受体基因不能表达
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A.
在报审施工图文件前,设计单位应当向施工单位详细说明该施工图设计文件
B.
在报审施工图文件同时,设计单位应当向建设单位简要说明该施工图设计文件
C.
在施工图文件审查合格后,设计单位应当向施工单位详细说明该施工图设计文件
D.
在施工图文件审查合格后,设计单位应当向建设单位详细说明该施工图设计文件
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