题目

.根据下列实验装置图回答: (1)写出标号仪器的名称:① ,② . (2)实验室用Zn粒和稀H2S04反应制取氢气,应选择的发生装置是 (填写装置序号,下同);选择的依据是 , 不 ;反应的化学方程式是(3)有同学用高锰酸钾加热来制取氧气,应选择的发生装置是 ;欲要收集到较纯净的氧气应选择的收集装置是 ;在收集过程中,发现水槽中的水变红,你认为产生其现象的原因可能是 .根据首字母或中文提示,补全单词。(20分)小题1:That kind of electronic dictionaries is well designed, and it is especially s______ for high school students learning English.小题2:“Are famous film stars always getting leading roles in movies?” “Not n________.”小题3:With the development of economy, a lot of companies have s______up in the industrial area.小题4:Going the shopping mall, you will see T-shirts in a wide v______ of colors intended for all kinds of people.小题5:The electric products produced in our company have good quality and usually a three-year g________.小题6:Professor Tudor is leaving for New York to attend an important international medical c________ next week.小题7:At the exhibition we saw a kind of record player, which had to be w________ up by hand and could only play for two minutes.小题8:This small electronic device is used to control an e_______ current passing through the machine.小题9:I’ve got two tickets for tonight’s concert given by the Russian artists. Would you like to a__________ me to go and enjoy it, Amy?小题10:I have total f_______in my best friends and believe that they are honest in this case.小题11:Their company bought the __________(专利) and applied the technology to create the new type of car.小题12:It is considered that digital TV is ___________(优越的) to satellite TV because it allows the same services to be delivered with clearer pictures.小题13:All of them said they didn’t like the design, but p________(就个人而言 ) I thought it was very fashionable.小题14:Five years after the International standards for digital TV were established ________(消费者)could have access to more than 200 channels in the USA.小题15:The Chinese __________(电信) industry is huge, and the amount of profit involved is unbelievably enormous.小题16:The boy tried to work out the maths problem by drawing a __________(平行线) between the two sides.小题17:I don’t think this program is practical and capable of calculating your_______(预算) for the year.小题18:By that time, digital TV ________(信号)had been received by 55 percent of households in the European country.小题19:With interactive TV programming, you can play along with game shows, respond to ________________(问卷) and chat to other viewers.小题20:These measures to be taken soon will all bring great _________________(方便) and delight to the citizens’ lives.
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