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【简答题】
Go into any average provincial town and the last thing you will find is a decent book-shop. More than one great industrial town of a population of over a hundred thousand has only one such shop, and that is generally kept going by the sale of school-books. It is because we cannot afford to buy books. We spend six 【S1】______ hundred million pounds a year on the beer, but we certainly do not 【S2】______ spend six hundred million pence on literature. Many people can 【S3】______ afford to buy motor-cars with anything from seven hundred pounds 【S4】______ would be aghast at the idea of spending a single pound occasionally on a book. Yet, merely like furniture, books are a cheaper and 【S5】______ better decoration than blue chinas or the eighteenth century chairs. 【S6】______ They are better because they put out the stamp of individuality 【S7】______ upon a house. The desire of the eighteenth century chairs and blue 【S8】______ china may represent not as a genuine personal taste for beautiful 【S9】______ things, but an artificial passion for rare and expensive ones. On the other hand, a collection of books will give a house character and meaning. It should tell you about its. 【S10】______ 【S1】
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【单选题】简单随机抽样又称()。
A.
系统抽样
B.
分群抽样
C.
单纯随机抽样
D.
分层抽样
【简答题】A.Most people like listening to music. B.People in the USA often go to psychologists to settle their problems. C.Watching TV is not a stress reliever as popular as listening to music. D.Taking a showe...
【单选题】关于氧的运输的正确叙述是( )
A.
血液中的氧气主要以氧合血红蛋白的形式存在
B.
氧气与血红蛋白的结合和解离是不可逆反应
C.
氧气与血红蛋白的结合反应不需要酶的催化
D.
氧气溶解在血浆中
E.
氧在血液中主要以物理溶解的形式存在
【判断题】MCS—51 单片机的两个定时器的均有两种工作方式,即定时和计数工作方式。
A.
正确
B.
错误
【简答题】Tom likes listening to music. ___Tom___ listening to music?
【单选题】简单随机抽样又称( )
A.
随机抽样
B.
纯随机抽样
C.
等距抽样
D.
分层抽样
【单选题】关于气体在血液中运输的叙述,下列哪项是错误的?
A.
CO2主要以HCO3—形式运输
B.
O2的结合形式是氧合血红蛋白
C.
O2与血红蛋白结合快、可逆、需要酶催化
D.
O2和CO2都以物理溶解和化学结合两种形式存在于血液中
【单选题】简单随机抽样又称为( )
A.
抽签抽样
B.
随机数表抽样
C.
纯随机抽样
D.
等距随机抽样
【单选题】James enjoys . He usually at the weekend. [     ]
A.
listening to music; listens to music
B.
listen to music; listen to music
C.
listening to music; listen to music
D.
to listen to music; listens to music
【判断题】简单随机抽样又称纯随机抽样。( )
A.
正确
B.
错误
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