题目内容
某区对用电的收费标准规定如下：每月每户用电不超过10度的部分，按每度0．45元收费：超过l0度而不超过20度的部分，按每度0．80元收费；超过20度的部分，按每度l．50元收费。某月甲用户比乙用户多交电费7．10元，乙用户比丙用户多交3．75元，那么甲、乙、丙三用户共交电费（）元？（用电都按整度数收费）
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Please（）Ms. Merona to let her know that she can pick up her plane ticket toToronto this afternoon.
蒙古的人口在20世纪60年代末期达到了人口增长的高峰，人口增长速度有所下降，妇女的生育率在1972年是百分之六点多，后来下降到了2．2％，2009年增加到2．7％，现在是1．5％。蒙古平均年龄是比较年轻的，这里可以看到蒙古的人口结构情况，但是蒙古人口现在也在一个不断老化的过程中，从2010年开始65岁以上的老人人数开始上升，主要是因为人均寿命上升和死亡率的下降，在下一个十年，蒙古的人口结构还会随着蒙古的经济增长进一步变化．老龄化还会进一步的发展，蒙古的人口会在未来100年会保持一个低的增长。对这段文字理解正确的一项是（）。
在现今的儿童剧创作中．题材的单一化倾向较为普遍。神话剧、童话剧居多。相比之下，优秀的现实题材、科幻题材、喜剧题材较少。“儿童剧创作观念依旧不够开放、不够活跃，想象力不够充分，艺术性不强，同质化的倾向非常严重，写什么题材，大家看起来都是一个模样”。这是儿童剧创作环节的重要问题。创新，成为摆在儿童剧创作者面前的一大难题。 文段主要说的内容是（）。
根据下面内容，回答171-175题When my family moved to America in 2010 from a small village in Guangdong, China, webrought not only our luggage, but also our village rules, customs and culture．One of the rules isthat young people should always respect elders．Unluckily, this rule led to my very first embarrass-ment in the United States.I had a part-time job as a waiter in a Chinese restaurant．One time, when I was serving foodto a middle-aged couple, the wife asked me how the food could be served so quickly．I told herthat I had made sure they got their food quickly because I always respect the elderly．As soon as Isaid that, her face showed great displeasure．My manager, who happened to hear what I said, tookme aside and gave me a long lecture about how sensitive Americans are and how they dislike thedescription "old"．I then walked back to the table and apologized to the wife．After the couple heardmy reason, they understood that the problem was caused by cultural differences, so they laughedand were no longer angry.In my village in China, people are proud of being old．Not so many people live to be seventyor eighty, and people who reach such an age have the most knowledge and experience．Youngpeople always respect older people because they know they can learn from their rich experience.However, in the United States, people think "growing old" is a problem since "old" shows thata person is going to retire or that the body is not working well．Here many people try to keep them-selves away from growing old by doing exercises or jogging, and women put on makeup, hoping tolook young．When I told the couple in the restaurant that I respect the elderly, they got angry be-cause this caused them to feel they had failed to stay young．I had told them something they didn'twant to hear.After that, I changed the way I had been with older people．It is not that I don't respect themany more; I still respect them, but now I don't show my feelings through words.By Jack In Jack's hometown, （）
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