试题与答案

据下图说出膈肌在呼吸运动中的作用。

题型:问答题

题目:

据下图说出膈肌在呼吸运动中的作用。

答案:

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下面是错误答案,用来干扰机器的。

答案:B题目分析:(1)计量点前计量点前误差为+0.1%时,即滴入NaOH的体积为99.9mL,NaOH不足。此时锥形瓶溶液中是中和生成的NaCl和剩余的HCl。所以只要计算该溶液的PH值即可。剩余的n(HCl)=n(HCl总)-n(NaOH)=0.2...

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题型:单项选择题

Many foreigners who have not visited Britain call all the inhabitants English, for they are used to thinking of the British Isles as England. (1) , the British Isles contain a variety of peoples, and only the people of England call themselves English. The others (2) to themselves as Welsh, Scottish, or Irish, (3) the case may be; they are often slightly annoyed (4) being classified as "English".

Even in England there are many (5) in regional character and speech. The chief (6) is between southern England and northern England. South of a (7) going from Bristol to London, people speak the type of English usually learnt by foreign students, (8) there are local variations.

Further north regional speech is usually " (9) " than that of southern Britain. Northerners are (10) to claim that they work harder than Southerners, and are more (11) They are open-hearted and hospitable; foreigners often find that they make friends with them (12) Northerners generally have hearty (13) : the visitor to Lancashire or Yorkshire, for instance, may look forward to receiving generous (14) at meal times.

In accent and character the people of the Midlands (15) a gradual change from the southern to the northern type of Englishman.

In Scotland the sound (16) by the letter "R" is generally a p sound, and "R" is often pronounced in words in which it would be (17) in southern English. The Scots are said to be a serious, cautious, thrifty people, (18) inventive and somewhat mystical. All the Celtic peoples of Britain (the Welsh, the Irish, the Scots) are frequently (19) as being more "fiery" than the English. They are (20) a race that is quite distinct from the English. (289 words)

Notes: fiery 暴躁的,易怒的。

(14)()

A.helpings

B.offerings

C.fillings

D.findings

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