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>> 成人高等教育 / 计算机应用基础
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佳题速递：
【单选题】总游离蒽醌的醚溶液，用冷5%Na2CO3水溶液萃取可得到（ ）
天然药物化学 公安机关制作的提请批准逮捕书应当依法送达提请审查批准逮捕的机关是( )
A.同级人民检察院
B.同级人民法院
C.上级公安机关
D.上级人民检察院
E.司法文书学 继电器是自动控制系统中常用的电器，用于接通和断开电路，以发布控制命令和反映设备状态，构成自动控制电路。正确错误城市轨道交通车站设备 题型描述: 阅读理解With the steady increase in the amount of leisure time that people enjoy today, the importance of businesses that deal with leisure products and services is also steadily increasing. Among them, tourist industry is one of the biggest industries of this kind. Providing transportation and accommodations for tourists — and guides, brochures, souvenirs — is one of the major industries in many countries. Since people are now having longer vacations and are more and more interested in seeing other parts of the world, this business will no doubt continue to grow. Another industry obviously devoted to leisure is entertainment. Movies, TV shows, concerts and plays are usually intended for our leisure. The same can be said of most books, except textbooks. Professional sports make money because people pay to watch them in their free time. This list could be greatly extended. But even among these industries, we have mentioned only part of the picture. The people who make the TV sets and build the theatres and tourist hotels are as much a part of the leisure industry as the singers or the hotel clerks.1、 According to the passage, the reason that tourist industry will continue to develop is _ _ _ _ _ _ . A. guides are offering better services B. accommodation is more comfortable C. people are more willing to travel D. transportation is more convenient 2、 The list of entertainment industries in paragraph 2 _ _ _ _ _ _ _ _ _ _ _ _ . A. excludes those who work behind the scene of leisure industry B. includes textbooks into entertainment C. covers all the aspects of these industries D. is not a complete picture of leisure industry 3、 Whatˊs the main idea of this passage? A. Now that people have more leisure time, entertainment industry has become one of the major industries in many countries. B. Now that people have more leisure time, leisure business is becoming more important in economic life. C. Now that people have more leisure time, tourist industry has become the largest industry in many countries. D. Now that people have more leisure time, leisure business list is being extended. 4、 What do we know about entertainment from the passage? A. Movies, TV shows, concerts and books are usually intended for our leisure. B. People are usually reluctant to pay to watch professional sports. C. Entertainment is the largest leisure industry. D. Making TV sets and building theatres are also part of entertainment industry. 5、 What makes leisure business important according to the passage? A. Longer vacations are offered than before. B. More people are interested in seeing other parts of the world. C. Peopleˊs leisure time is increasing. D. Improved transportation and accommodation conditions.统考英语A 78[单选题]
当体系以绝热可逆过程发生状态变化时，则体系的熵变（）。
A.>0
B.=0
C.<0
D.不能确定化工热力学 [简答题] 如何理解和评价各种城市功能地域的概念？城市地理学