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【简答题】
How to approach Reading Test Part Six &8226;This part of the Reading Test tests your ability to identify additional or unnecessary words in a text. &8226;Most lines contain one extra word that makes the sentence incorrect. &8226;Read the whole text quickly to find out what it is about. As you read, try to identify the words that are incorrect. &8226;Then read the text again, and write down the extra words. Remember there will be only one extra word in a line, and some lines are correct. ? Read the advertisement below about a company which lets offices. ? In most lines there is one unnecessary word. It is either grammatically incorrect or does not fit in with the sense of the text. Some lines are correct. ? For each numbered line 41 - 52, find the unnecessary word and then write the word in CAPITAL LETTERS on your Answer Sheet. If a line is correct write CORRECT on your Answer Sheet. Prestigious but inexpensive offices In some towns business premises are at a premium, with scarce office space rapidly being used up. So what do you do best if you need a base for a start-up company but 41. either cannot find a suitable location or cannot afford the overheads? One solution for 42. which ever more new businesses are opting is to use the services of an office provider, 43. a company applied with business premises, generally in prestigious locations. Its 44. subscribers can both save money by working from home, while impressing their own 45. customers by using the premises such as their business address, Offices can also be 46. hired for as short a time as an hour, or for any other period, making it possible for 47. subscribers to hold meetings in rather more professional-looking surroundings than 48. their own home. In addition, office providers offer secretarial and the reception 49. facilities, thus are making these services available without the normal delays and costs 50. arising from having to recruit and employ staff. The flexibility of monitoring the 51. system means that your changing requirements can be accommodated without some 52. difficulty, allowing you to concentrate yourself on growing your business. Just choose the services you require. (41)
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参考答案:
举一反三
【简答题】单相桥式整流电路,若其输入交流电压有效值为10V,则整流后的输出电压平均值等于 [填空(1)] ;若加电容滤波,则输出电压为 [填空(2)] 。
【简答题】单相桥式整流电路,若其输入交流电压有效值为 12V ,则整流后的输出电压平均值等于 __________ ;若接入电容滤波电路,则输出电压平均值等于 ________ ;若负载 R L 断开,此时输出电压平均值为 ________ 。
【单选题】下列物质可以发生碘仿反应的是( )。
A.
丙醛
B.
乙醇
C.
甲醛
D.
环己酮
【单选题】临床死亡期的特征是
A.
循环衰竭
B.
呼吸衰竭
C.
各种反射消失
D.
神志不清
E.
肌张力丧失
【单选题】临床死亡期的特征是
A.
循环衰竭
B.
呼吸衰竭
C.
各种反应消失
D.
神志不清
E.
嗜睡
【单选题】下列化合物既可与HCN反应,又可以发生碘仿反应的物质是:
A.
正辛醛
B.
3-戊酮
C.
环己酮
D.
2,4-戊二酮
【单选题】单相桥式整流电路,若其输入交流电压有效值为10V,则整流后的输出电压平均值等于(       )。
A.
12V
B.
10V
C.
9V
D.
4.5V
【单选题】下列关于羧酸α -H 的性质,不正确的是( )
A.
羧酸α-H活性较醛、酮α-H活性低,所以羧酸的α-H卤代反应,只有加入少量的红磷,才能顺利进行
B.
CH3COOH与PCl3作用,主要生成物是CH3COCl
C.
在少量的PCl3存在下,CH3COOH与PCl3作用,主要生成物是ClCH2COOH
D.
CH3COOH与CH3COCH3相似,可以发生碘仿反应
【单选题】单相桥式整流电路,若其输入交流电压有效值为10V,则整流后的输出电压平均值等于 [填空(1)] ;若加电容滤波,则输出电压为 [填空(2)] 。
A.
9V
B.
12V
【单选题】《独弦操》这首音乐作品刘天华先生创作于哪年?
A.
1930
B.
1931
C.
1932
D.
1933
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