【判断题】
荒漠化是指在干旱、半干旱和半湿润地区受气候因素及人类活动影响所造成的土地退化.
A. 对
B. 错
查看试卷,进入试卷练习
微信扫一扫,开始刷题
答案
A
解析
暂无解析
相关试题
【判断题】
过度放牧不是土地荒漠化现象
A. 对
B. 错
【判断题】
大面积的沼泽、滩涂等湿地是对土地资源的浪费,应该加快改造利用
A. 对
B. 错
【判断题】
土壤污染具有隐蔽性和持久性,很难清除
A. 对
B. 错
【判断题】
生态文明建设是关系人民福祉、关乎民族未来的大计,是实现中华民族伟大复兴中国梦的重要内容
A. 对
B. 错
【判断题】
人类积极的保护环境行为可以一定程度上提高环境承载力
A. 对
B. 错
【判断题】
承载一定数量的人口所需要的面积在不同区域差异没有
A. 对
B. 错
【判断题】
核电问世以来,在安全性、经济性、可持续性等方面有显著提高
A. 对
B. 错
【判断题】
水能资源(如水力发电)利用过程中会排放有害气体、热水等污染物
A. 对
B. 错
【判断题】
海洋能是巨大的能源宝库,目前利用非常广泛
A. 对
B. 错
【判断题】
夏天游泳时,气温较高,下水前不需要做准备活动
A. 对
B. 错
【判断题】
下水前,要认真做准备活动,以免下水后发生肌肉痉挛
A. 对
B. 错
【判断题】
发生刺激性气体中毒应迅速将中毒人员移离现场,脱去污染衣服
A. 对
B. 错
【判断题】
皮肤污染、化学灼伤等应在送往医院后再进行彻底冲洗
A. 对
B. 错
【判断题】
影响或登陆我国的台风主要发生在夏季和秋季
A. 对
B. 错
【判断题】
地震时,住楼房的人在紧急情况下可以跳窗逃命
A. 对
B. 错
【判断题】
如果在沟谷中遇到泥石流发生,要立刻向沟谷两侧的山坡上跑,离开低洼沟谷地带
A. 对
B. 错
【判断题】
在上空发生强雷暴天气的旷野,躲避在金属材质封闭结构的汽车体内是安全的
A. 对
B. 错
【判断题】
海洋受到污染后,可以通过海洋的自净功能很快恢复
A. 对
B. 错
【判断题】
大气污染物排放到大气中就会污染大气,因此要严格禁止任何大气污染物排放
A. 对
B. 错
【判断题】
海洋的自净能力有限,排放的污染物速度超过海洋的自净速率,就会发生海洋污染
A. 对
B. 错
【判断题】
清洁生产要求生产过程中不能排放任何污染物
A. 对
B. 错
【判断题】
工业废水含有有毒污染物必须经过处理才能排到江河湖泊里,但生活污水不含有毒污染物,可以直接排放
A. 对
B. 错
【判断题】
旅游外出坐船时,吃剩下的水果皮可以直接丢到水里
A. 对
B. 错
【判断题】
饮用水源地周围风景优美,可以建设度假村,大力发展旅游业
A. 对
B. 错
【判断题】
土壤一旦受到污染,可以通过土壤的自净功能很快恢复
A. 对
B. 错
【判断题】
土壤污染会通过食物链影响人体健康
A. 对
B. 错
【判断题】
如果有需要,可以将农用地转为建设用地?
A. 对
B. 错
【判断题】
开发、利用水资源,应当首先满足城乡居民生活用水,并兼顾农业、工业、生态环境用水以及航运等需要
A. 对
B. 错
【判断题】
能够合理利用雨水、中水(再生水)
A. 对
B. 错
【判断题】
海洋那么大,所以资源是取之不尽用之不竭的
A. 对
B. 错
【判断题】
空气中的氮气和氧气的体积百分比分别是78%和21%
A. 对
B. 错
【判断题】
:氧气的化学性质比较活泼,能支持燃烧
A. 对
B. 错
【判断题】
在人体中,含量较多的四种元素是氧碳氢氮
A. 对
B. 错
【判断题】
在化学反应中,参加反应的各物质的质量总和等于反应后生成各物质的质量总和
A. 对
B. 错
【判断题】
镁粉在空气中燃烧后,生成物的质量跟镁粉的质量相等
A. 对
B. 错
【判断题】
氢气在氧气中燃烧,参加反应的氢气和氧气的体积之和,等于生成水的体积
A. 对
B. 错
【判断题】
铁为金属元素,汞为非金属元素
A. 对
B. 错
【判断题】
通常情况下,金属汞为固态
A. 对
B. 错
【判断题】
镁、铁、铝、铜都能与稀盐酸反应放出氢气
A. 对
B. 错
【判断题】
露天的大理石雕刻作品会被酸雨腐蚀,是因为酸雨中含有大量的醋酸
A. 对
B. 错
推荐试题
【单选题】
What regulation was issued by New York State concerning beverage containers?___
A. A fee should be charged on used containers for recycling.
B. Throwaways should be collected by the state for recycling.
C. Consumers had to pay for beverage containers and could get their money back on returning them.
D. Beverage companies should be responsible for collecting and reusing discarded plastic soda bottles.
【单选题】
The returned plastic bottles in New York used to _____________.___
A. be turned into raw materials
B. be separated from other rubbish
C. have a second-life value   
D. end up somewhere underground
【单选题】
The key problem in dealing with returned plastic beverage containers is ______________.___
A. how to reduce their recycling costs
B. to sell them at a profitable price
C. how to turn them into useful things
D. to lower the prices for used materials
【单选题】
Recycling has become the first choice for the disposal of rubbish because ______________.___
A. recycling causes little pollution
B. other methods are more expensive
C. recycling has great appeal for the jobless
D. local governments find it easy to manage
【单选题】
It can be concluded from the passage that ____________.___
A. recycling is to be recommended both economically and environmentally
B. local governments in the U.S. can expect big profits from recycling
C. rubbish is a potential remedy for the shortage of raw materials
D. landfills will still be widely used for waste disposal
【单选题】
The author chose to study engineering at a small liberal-arts university because he ________.___
A. intended to be a sensible student with noble ideals
B. wanted to be an example of practicality and rationality
C. intended to be a combination of engineer and humanist
D. wanted to coordinate engineering with liberal-arts courses in college
【单选题】
 According to the author, by interacting with people who study liberal arts, engineering students can __________.___
A. broaden their horizons
B. receive guidance in their careers
C. become noble idealists
D. balance engineering and the liberal arts
【单选题】
In the eyes of the author, a successful engineering student is expected ______________.___
A. to be imaginative with a value system to guide him
B. to be a technical genius with a wide vision
C. to have an excellent academic record
D. to be wise and mature
【单选题】
The author's experience shows that he was ________.___
A. creative        
B. ambitious  
C. irrational        
D. unrealistic
【单选题】
 The underlined word "they" in "... together they threaten to confuse." (Para.5) refers to ____________.___
A. practicality and rationality  
B. engineering and the liberal arts
C. reality and noble ideals  
D. flexibility and a value system
【单选题】
It can be learned from the passage that the Ouchidas' house __________.___
A. failed to meet energy conservation standards
B. was designed and constructed in a scientific way
C. is well worth the money spent on its construction
D. is almost faultless from the point of energy conservation
【单选题】
What made the Ouchidas' new house a horrible dream?___
A. Lack of fresh air.          
B. Gas leakage in the kitchen.
C. The newly painted walls.  
D. Poor quality of building materials.
【单选题】
The underlined word "accentuate" (Para. 3) most probably means "________".___
A. worsen        
B. accelerate  
C. relieve          
D. improve
【单选题】
Why were cracks in old houses not a big concern?___
A. Because environmental protection was given top priority.
B. Because indoor cleanness was not emphasized.
C. Because they were technically unavoidable.
D. Because energy used to be inexpensive.
【单选题】
This passage is most probably taken from an article entitled "_________".___
A. Energy Conservation
B. Air Pollution Indoors
C. House Building Crisis
D. Traps in Building Construction
【单选题】
We need to plan ahead in order to ___________.___
A. keep a record of all the events    
B. better organize our activities
C. store everything in our head      
D. pile up little tasks neatly
【单选题】
Strategic times are best for us to ___________.___
A. save energy      
B. check e-mails            
C. study efficiently            
D. organize activities
【单选题】
Which of the following could be used as a motivation to do our assignments?___
A. Remembering our urgent tasks.      
B. Any activities we're eager to do.
C. Taking a break in the afternoon.  
D. The promise to study efficiently.
【单选题】
What can help us to keep refreshed throughout the day?___
A. Doing some physical exercise.        
B. Taking a short nap in the afternoon.
C. Rushing through some assignments.  
D. Playing a game of chess with a friend.
【单选题】
Which of the following could be the best title for this article?___
A. Study Habits and Time Management  
B. Business Management and Leadership
C. University Education and Campus Life      
D. Life Goals and Academic Development
【单选题】
It is implied in the text that it is hard to ________.___
A. carry life learning though  
B. tell the nature of life learning
C. learn without going to school
D. find a specially trained teacher
【单选题】
According to the author, the schooling framework often ________.___
A. produces slow students with poor memories
B. ignores some parts of the official curriculum
C. fails to provide enough knowledge about life
D. gives little care to the quality of teaching materials
【单选题】
Life learners recognize that learning will not be difficult if they are _________.___
A. clear about why to learn
B. careful to make a time table  
C. able to respect other people
D. cautious about any mistakes
【单选题】
According to the author, life learning ________.___
A. could prevent one from running risks
B. could be a road full of trials and errors
C. makes a kid independent of his parents
D. teaches a kid how to avoid being scorned
【单选题】
Through life learning, children ________.___
A. will grow without the assistance from parents
B. will learn to communicate with the real world
C. will be driven to learn necessary life knowledge
D. will be isolated from the negative side of society
【单选题】
A good title for this passage is __________.___
A. Sleep                 
B. Good Health    
C. Dreams             
D. Work and Rest
【单选题】
The word drowsy in the last paragraph means __________.___
A. sick                   
B. stand up       
C. asleep               
D. a little sleepy
【单选题】
This passage suggests that not getting enough sleep might make you ___________.___
A. dream more often     
B. have poor health   
C. nervous                 
D. breathe quickly
【单选题】
During REM,  ___________ .___
A. your eyes move quickly    
B. you dream  
C. you are restless   
D. both A and B
【单选题】
The average number of hours of sleep that an adult needs is __________.___
A. approximately six hours    
B. around ten hours    
C. about eight hours      
D. not stated here  
【填空题】
___
【填空题】
___
【填空题】
1、肿瘤TNM分类___
【填空题】
2、颞下颌关节紊乱病___
【填空题】
3、继发性牙颌面畸形___
【填空题】
4、Sjogren syndrome___
【填空题】
5、三叉神经痛___
【填空题】
___
【填空题】
①___;
【填空题】
②___;