下列关于维生素的叙述中,正确的是( )。
A.维生素是一类高分子化合物
B.酶的辅酶或辅基都是维生素
C.引起维生素缺乏的唯一原因是摄入量不足
D.维生素在机体内不能合成或合成量不足
A.维生素是一类高分子化合物
B.酶的辅酶或辅基都是维生素
C.引起维生素缺乏的唯一原因是摄入量不足
D.维生素在机体内不能合成或合成量不足
第1题
Which of the following is NOT true?
A.Each page can be given a score that reflects its importance.
B.In the beginning of rating a page's relative importance, all pages are given the same score.
C.The importance of one page depends on the importance of pages that link to it, the importance of which depends in turn on the importance of pages that link to them.
D.One page's score is given totally to another page it links to.
第2题
Directions: For this part, you are allowed 30 minutes to write an essay commenting on the saying "Learning is a daily experience and a lifetime mission." You can cite examples to illustrate the importance of lifelong learning. You should write at least 120 words but no more than 180 words.
第3题
Which of the following is NOT true?
A.Each page can be given a score that reflects its importance.
B.In the beginning of rating a page's relative importance, all pages are given the same score.
C.The importance of one page depends on the importance of pages that link to it, the importance of which depends in turn on the importance of pages that link to them.
D.One page's score is given totally to another page it links to.
第4题
Which of the following is NOT true?
A.Each page can be given a score that reflects its importance.
B.In the beginning of rating a page's relative importance, all pages are given the same score.
C.The importance of one page depends on the importance of pages that link to it, the importance of which depends in turn on the importance of pages that link to them.
D.One page's score is given totally to another page it links to.
第5题
Even if I had known her address, I ________ time to write to her.
A) can not have had
B) will not have had
C) must not have had
D) might not have had
第6题
The most appropriate title for this passage would be ______.
A.The Importance of Research in Education
B.How to Write a Research Paper
C.Cultivate One's Ability to Study Independently
D.How to Individualize a School Assignment
第7题
It was _____ last year ______ he came to realize the importance of learning English.
A、until ; before
B、that ; until
C、until ; that
D、before ; until
第8题
A.She implies that she also wants to write about the Industrial Revolution.
B.She implies that she might also write the term paper.
C.She implies that he should get started right away.
D.She implies that the subject might not be appropriate.
第10题
1.a daily experience and a lifetime mission。” You can cite examples to illustrate the importance of lifelong learning“。 You should write at least 120 words but no more than 180 words。
破题思路:
第一段: 解释引言内容。 提出文章的主旨 : “学习的重要性”
第二段: 分析原因 此处可以结合例子。
第三段: 得出结论
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