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【单选题】

Variety is the spice of language. The words listed in this book are not intended to replace those that most people use most of the time. Rather, they are variations on the theme. We tend to use the same old words over and over again, to limit our powers of expression by limiting our vocabulary. There is nothing wrong with the "old words", but why not enhance your speech and writing by learning to use new ones from time to time as alternatives
How often have you spoke of having an accident Why not use the alternative mishap (小事故) once in a while Everyone talks of the usual thing to do or expect. Might not one, to enrich his speech, speak of the customary thing Or why not occasionally describe a situation as aggravated instead of worsened
Don’t throw away the "old words". Vary them with the "new words". English is an especially rich language, and often there are delicate shades of difference between two words that are generally regarded as equivalent or synonymous. Thus, a mishap is not merely an accident; it is an unfortunate accident. (There can be fortunate accidents, like bumping into an old friend you haven’t seen for years and whose address you’ve lost.) So, in using mishap instead of accident, you must be sure of the distinction. Again, you’d never say "as customary" rather than "as usual", because the latter phrase has become art of the language. But wouldn’t it sometimes be pleasant and perhaps more interesting to describe a kind act by someone as having been done with his customary rather than his usual thoughtfulness Other examples: fragrant, for smelling good, or having a nice smell; morsel, for bit, wayward, for disobedient; deft, for skillful or clever.
No doubt a good many words in the list will be familiar to you, but do you use them, or do they remain the "property" of others They are included to introduce variety, and, more often than not, subtle shades of meaning into your speech and writing. Try to make these words your own, as companions or friendly of the ones you have managed with in the past. Let them compete, and make your language all the richer.
Many words have more than one meaning. In such cases, I have given the meaning or meanings most likely to be used in everyday speech, omitting the rest. As an example, the word docile means not only "easily led" or "manageable", but also "easily taught" or "teachable". (Docile comes from the Latin docilis, whose first meaning is "teachable", and is based on the Latin verb docere, meaning to teach, a form of which, doctus, meaning "taught", gave us our word doctor.) In this book, only the meaning "easy to manage or lead" is given, because the other use "teachable" is very rare in everyday English usage. Or take ghastly, which means "ghostlike" as well as "horrible, dreadful" (as in a ghastly accident or a ghastly mistake). The first meaning is sufficiently rare, for the purposes of this book, to warrant omission.
According to the author, words ______.

A.
add shades of color to our social life
B.
are also a kind of assets to people
C.
cannot be owned by speakers if not used
D.
also compete with each other for survival
题目标签:小事故事故
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【单选题】针对下列生活中常见的安全事故,做法错误的是( )。

A.
发生火灾时,如果浓烟太大,可以用口罩或者毛巾捂住El鼻,身体尽量贴着地面前进或者爬行
B.
一旦发生烫伤,自己可以先在伤口处涂点牙膏、碱面等,以暂缓疼痛;若烫伤处有水疱,需要挑破,以防水疱变大
C.
当发现有人触电时,应尽快找到电闸,切断电源
D.
煤气泄漏时,应立即关闭煤气阀并开窗透气,且不能打电话或者使用打火机等,以免引发爆炸

【多选题】未能停堆的预期运行瞬变这种假想事故可考验核电厂的()。

A.
稳压器释放阀及安全阀的设计容量
B.
稳压器波动管的位置
C.
反应堆第二停堆系统的性能
D.
冷凝器真空状态
E.
事故情况下的操作规程

【多选题】危险化学品事故应急救援的基本任务包括哪些。( )

A.
组织群众撤离
B.
抢救受害人员
C.
抢救物资
D.
排除现场灾患
E.
控制危险源