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Driving a car at a high speed along a highway seems to be fun. You need only to follow the bright traffic signs beside the highways and it will take you to where you wish. But to a London taxi driver, driving is not an easy job. A taxi driver has to have not only skills but also a good knowledge of the city of London, from the smaller road to the most popular bar around. He has to be at service of all kinds of passengers at all times. A certain London taxi driver told of his job as follows. During the night it is quite usual for him to stop two or three times for some refreshments (提神). He said, “I never drink when I’m working --- I would lose my license.” He usually goes home between 2 and 3 o’clock in the night. There are times he has to stay longer and try to make more runs. He said, “That’s the worst thing about working for yourself. If you don’t make any money, no one is going to give it to you.” London taxi drivers not only “take” but also “give”. Every summer hundreds of children from London will go for a day at the sea --- by taxi! Their rides are paid by the taxi drivers, and these all go to the “London Taxi for Underprivileged Children ”. At the sea, they are met by the mayor (市长), and a lunch party is also held in honor of the taxi drivers and the children. After a happy day running around the sea beaches and visiting the markets, the children go home again --- by taxi, and free of charge (支出), of course! 小题1:From the first paragraph, we can see that________. A.highways are developing very fast and there are more and more taxis. B.it is easy to get to any place of the country now C.it is fun to travel everywhere in a car D.the writer wants to tell us that a London taxi driver has many difficulties in his driving 小题2:It is not easy to be a taxi driver in London because ________. A.he has to know all the places in the city and serve all kinds of passengers at all the time B.there is much traffic in London and people there like traveling by taxi C.he has to follow the bright traffic sighs D.although he works hard he earns little money 小题3:The underlined phrase “Underprivileged Children” in the last paragraph is about the children ________. A. who have little knowledge              B. whose families are poor C. who will go to sea                     C. who like taking a taxi 小题4:What is the passage about? A.Traffic in London. B.London taxi for children C.Taxi divers’ job in London. D.Drivers disliking taxis in London
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【单选题】面包生产中,发酵的温度和湿度控制在( )。
A.
35 ℃ , 75%
B.
28 ℃ , 80%
C.
31 ℃ , 85%
D.
25 ℃ , 90%
【单选题】在 if...elif...else 的多个语句块中只会执行一个语句块?
A.
正确。
B.
错误。
C.
根据条件决定。
D.
Python中没有elif语句。
【多选题】关于小区供热锅炉房的表述,哪几项是正确的
A.
省煤器装设在锅炉尾部烟道内
B.
通常设有水软化装置、除氧装置
C.
燃油锅炉房的日用油箱,使用重油,其容积不应超过5m 3
D.
燃气锅炉的调压装置不宜设在地下建筑物内
【判断题】在 if...elif...else 的多个语句块中只会执行一个语句块? C. 不一定 D. 语法错误,没有elif
A.
正确
B.
错误
【单选题】在 if...elif...else 的多个语句块中只会执行一个语句块?
A.
正确。
B.
错误。
C.
根据条件决定。
D.
Pyhton 中没有 elif 语句。
【判断题】在 if...elif...else 的多个语句块中只会执行一个语句块? C. 根据条件决定 D. Pyhton 中没有 elif 语句
A.
正确
B.
错误
【单选题】有关小区锅炉房中供热锅炉的选择表述,下列何项是错误的?
A.
热水锅炉的出口水压采用循环水系统的最高静水压力
B.
热水锅炉的出口水压,不应小于锅炉最高供水温度加20C。相应的饱和水压力(用锅炉自生蒸汽定压的热水系统除外)
C.
燃气锅炉应优先选用带比例调节燃烧器和燃烧安全的全自动锅炉
D.
新建独立锅炉房的锅炉台数不宜超过5台
【多选题】关于小区供热锅炉房的表述正确的有( )。
A.
省煤器装设在锅炉尾部烟道内
B.
通常设有水软化装置和除氧装置
C.
蒸汽过热器通常设在锅炉尾部烟道内
D.
燃气锅炉的调压装置不宜设在地下建筑物内
E.
燃油锅炉房的日用油箱,使用重油,其容积不应超过5m 3
【单选题】下列关于城市供热规划的表述,哪项是错误的 ( )
A.
集中供热系统的热源有热电厂、专用锅炉房、低温核能供热站等
B.
热电厂效率高于集中锅炉房和分散小锅炉
C.
依据城市不同热源的供热范围,可以将城市划为多个供热分区
D.
热电厂应尽量靠近热负荷中心
【单选题】根据比较优势原理的政策经验,一国从国际贸易中获益的条件是( )。
A.
造大量出口顺差
B.
较低的机会成本进口商品而不是在国内生产
C.
国比贸易伙伴强大
D.
国相对于贸易伙伴具备绝对效率优势
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