1.单选题- (共4题)
A.用甲基绿对细胞染色,可显示DNA在细胞中的分布,进而推知RNA的分布 |
B.用吡罗红对细胞染色,可显示RNA在细胞中的分布,进而推知DNA的分布 |
C.用甲基绿和吡罗红混合染色剂对细胞染色,同时显示DNA和RNA在细胞中的分布 |
D.在细胞核、细胞质内可以分别提取到DNA和RNA,由此说明DNA和RNA的分布 |
A.ATP脱去2个磷酸基团后是RNA的基本组成单位之一 |
B.糖原代谢的最终产物是葡萄糖 |
C.蔗糖和乳糖水解的产物都是葡萄糖 |
D.脂肪和生长激素是生物体内的能源物质 |
A.染色体的基本结构由蛋白质组成 |
B.染色体的基本结构由 DNA 组成 |
C.染色体由 DNA 和蛋白质组成 |
D.染色体中的 DNA 和蛋白质镶嵌排列 |
2.选择题- (共2题)
Do you remember the last time you read a book, or a magazine? Is checking e-mails or updating microblog your daily reading habit? If you're one of those who don't make a habit of reading regularly, you might be really out.{#blank#}1{#/blank#}
Stress Reduction
No matter how much pressure you have at work, in your personal relationships, or other issues in daily life, it all just slips away when you lose yourself in a great story.{#blank#}2{#/blank#}
Knowledge
Everything you read fills your head with new information, and you never know when it might come into use.{#blank#}3{#/blank#}Besides, you might lose everything else—your job, your money, even your health, but knowledge can never be taken from you.
Vocabulary Expansion
{#blank#}4{#/blank#} As a result, this will gradually enlarge your everyday vocabulary. Then you might become more knowledgeable and well-spoken, which can increase your self confidence and even help you get promotions more quickly.
Better Writing Skills
Exposure to well-written work has a great effect on your own writing. In other words, writing styles of other authors will influence your own work.{#blank#}5{#/blank#}
Now that reading has so many benefits, step away from your computer and go hunting for something new to read!
A. Here are some benefits of reading.
B. Here are some suggestions for your health.
C. The more you read, the more words you gain exposure to.
D. This goes hand-in-hand with the expansion of your vocabulary.
E. A well-written novel can bring you pleasure, and allow you to relax.
F. The more knowledge you have, the better-equipped you are for your life.
G. That is why beginners always learn how to write by reading the works of others.
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【1】题量占比
单选题:(4道)
选择题:(2道)
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【2】:难度分析
1星难题:0
2星难题:0
3星难题:0
4星难题:0
5星难题:0
6星难题:2
7星难题:0
8星难题:1
9星难题:1