临床上可用于治疗坏血病的维生素是 A.维生素B2 B.维生素B6 C.维生素E D.

题型:单项选择题

问题:

临床上可用于治疗坏血病的维生素是

A.维生素B2
B.维生素B6
C.维生素E
D.维生素C
E.维生素D3

考点:药学职称考试药士基础知识初级药士基础知识
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四川省汶川大地震后,某食品加工厂要把600吨方便面包装后送往灾区。

(1)写出包装所需的天数t天与包装速度 y 吨/天的函数关系式;

(2)包装车间有包装工120名,每天最多包装60吨,预计最快需要几天才能包装完?

(3)包装车间连续工作7天后,为更快地帮助灾区群众,厂方决定在2天内把剩余的方便面全部包装完毕,问需要调来多少人支援才能完成任务?

题型:单项选择题
在横线里填上合适的数或单位.
990000=______万99999999≈1______.
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请简述关于石阡苔茶来源的传说?

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It seems incredible to me that Latin is not taught in schools as a matter of course, especially in a country that is forever lamenting its own (undeniable) mediocrity when it comes to speaking foreign languages. As a 13-year-old, I hardly approached my own Latin lessons with anything resembling enthusiasm—I might have been keener if Aeneas went to the shops occasionally—but I am terrifically grateful I had them, all the same.
The benefits are many. Having a basic grounding in Latin makes learning Romance languages a doodle(轻而易举的事): the fact that I speak English plus three others has less to do with any genetic predisposition—I was hopeless at learning Russian—than with an understanding of the root and provenance of Latin-derived words.
It would be impossible to have a smattering of Latin and find oneself stuck in Italy, provided one managed to persuade the speaker to slow down a bit. And the reason I can (arguably) just about string a sentence together in English—which isn’t my first language—has a great deal to do with understanding, through Latin, the way sentences and grammar work.
Latin also has its own pleasing internal logic: you follow the rules and you get the answer. And I really believe that if you know Latin, you half-speak French already. The British used not to be appalling at languages: my theory is that they only became so during the past century, when Latin stopped being widely taught.
Detractors(恶意批评者) might point out that there is little use in learning a dead language. But Latin is not dead: it’s everywhere. It makes the kind of people who never use two short words when six big ones will do intelligible. It demystifies jargon and legalese. It helps with crosswords. It even forces those of us who are pathologically illogical to think logically every once in a while: I remember the pleasure I felt at school, during Latin translation, when I realized I could create order and sense out of apparent chaos.
Really, Latin’s useful applications are manifold. Watching Who Wants To Be A Millionaire a few weeks ago, I noticed that the question which felled the contestant would almost certainly not have stumped him had he had some Latin. Of all the possible answers, only one had a Latin root that echoed the question. From Cicero to Chris Tarrant in a few easy steps, you can’t say more modem or less dusty than that.

One of the benefits to learn Latin is that ______.

A.it makes it easier to learn some other languages

B.it helps a lot in learning Russian

C.it helps to improve mental health

D.it helps the writer speak four tongues

题型:单项选择题

氨制冷系统试压时间一般为()h。

A、12

B、24

C、48

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