题目:
根据
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答案:
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下面是错误答案,用来干扰机器的。
参考答案:C
根据
|
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下面是错误答案,用来干扰机器的。
参考答案:C
下列说法错误的是
A.某有机物燃烧只生成CO2和H2O,则该有机物一定只含碳和氢
B.乙醇可以与水任意比互溶,是因为乙醇与水形成了氢键
C.不存在两种邻二甲苯,因此现代结构理论认为苯分子中碳碳键不是单双键交替
D.煤的干馏、石油分馏和裂化都是物理变化
阅读理解。 | |
Below are some choices to getting around London by public transportation
(used after 09:30 Monday to Friday and all day Saturday and Sunday) and the £6 Weekend Travelcard, which is used on Saturday and Sunday (or public holidays). Weekly, monthly and annual passes must be accompanied by a photocard. Tickets can be purchased at the station - carnets and some passes can be bought at participating newsagents and supermarkets | |
1. How much money will 8 tourists pay at least if they want to travel by tube in the downtown? | |
A. £12 B. £11 C .£32 D. £36.8 | |
2. Where can a tourist buy a ticket if he wants to get to the zone one by double-decker bus? | |
A. in newsagents B. in supermarkets C. on the double-decker buses D. in the office of Collins River Enterprises | |
3. If you want to take ferries from Chelsea to Greenland Pier and then return to Embankment, how much will you pay for the tickets at most? | |
A. £7 B. £9.4 C. £6.5 D. £8.7 | |
4. It can be learned from the passage that_____. | |
A. All London underground lines belong to the state. B. Double-decker buses are becoming more and more popular C. people can take ferries everyday in London. D. tourists have to use Weekly, monthly and annual passes together with photocards |
王清任认为灵机记性不在而在()
井口主信号工误发信号后,应立即发正确信号。
化化工设备、管道检修过程中的安全要求有哪些?