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【单选题】
维生素C的含量测定药典采用碘量法,此法 是利用维生素C的
A.
还原性
B.
氧化性
C.
酸性
D.
碱性
E.
溶解性
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参考答案:
举一反三
【单选题】毒扁豆碱用于青光眼的优点是
A.
比毛果芸香碱作用强大而且持久
B.
毒副作用比毛果芸香碱小
C.
水溶液稳定
D.
不易引起调节痉挛
E.
不会吸收中毒
【简答题】毛果芸香碱对眼睛的作用为
【单选题】下列有助于蛋白质化学性消化的是( )
A.
盐酸
B.
维生素
C.
胆汁
D.
淀粉酶
【简答题】阅读下面短文并回答问题。 [1] The air we breathe is so freely available that we take it for granted. Yet without it we could not survive more than a few minutes. For the most part, the same air is available to eve...
【简答题】阅读理解。 阅读下面短文并回答问题。(请注意问题后的词数要求)。 [1] You've known your best friend for many years and shared many precious moments together, they have always been there for you and have been your rock to lean on when...
【简答题】Read and answer. (阅读短文,回答问题) Peter, Sarah and Mike are good friends. They are all twelve years old. They are in Grade Four. They all like sports. Mike is heavier and taller than Peter. So he is a foot...
【简答题】阅读日历,回答问题。 1. How many days are there in this month? _________________________________. 2. The first day of the month falls on a _____. 3. What date is the third Tuesday in the month? ________________...
【简答题】阅读理解,回答问题。 In many south European courtries, you can see many lost dogs and lost cats on the streets. Every year there are born more animals. Low to solve the problem. The volunteers are trying to dea...
【简答题】阅读简答,阅读下列文章,回答问题。 Health experts have warned for many years that cigarette-smoking can lead to heart disease, cancer and other medical problems. And officials say disease caused directly by smoking ki...
【单选题】毒扁豆碱用于青光眼的优点是
A.
比毛果芸香碱作用强大而且持久
B.
毒副作用比毛果芸香碱小,不易引起调节痉挛
C.
易引起调节痉挛
D.
不会吸收中毒
E.
以上都是
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