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【简答题】
如下图所示的图解表示构成细胞的元素、化合物,a、b、c、d代表不同的小分子物质,A、B、C代表不同的大分子,请分析回答下列问题: (1)物质B的多样性决定于__________以及其自身的空间结构。 (2)物质b的分子结构的特点是___________________。 (3)物质C在人体细胞中分布于________和_______两个结构中。 (4)物质d和_____________都属于固醇类物质。
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举一反三
【单选题】Directions: Choose the best answer to complete the following statement. This passage is mainly conducted with the writing skill of ___
A.
comparison and contrast
B.
expository
C.
argumentation
【多选题】平键的特点有( )
A.
结构简单
B.
对中性好
C.
拆装方便
D.
靠上下两面的的摩擦力传递动力
【简答题】Copy and complete the table by writing the following words in the right categories.
【单选题】The purpose of the author in writing the passage is to ______.
A.
complete the definition of entrepreneur
B.
tell the readers what is entrepreneur and the main characteristics of entrepreneurs
C.
show what kind of people can become entrepreneurs
D.
illustrate why Ray Kroc can become an entrepreneur
【简答题】PART FOUR  WRITING SECTION A Directions: Read the following passage. Complete the diagram by using the information from the passage. Write NO MORE THAN THREE WORDS for each answer. One of the definiti...
【简答题】通过视频观看,请列举儿童不合理用药现象有哪些?
【多选题】防火墙的作用( )
A.
过滤进出网络的数据
B.
管理进出网络的访问行为
C.
封堵某些禁止的行为
D.
记录通过防火墙的信息内容和活动
【单选题】报关单位对报关差错记录有异议的,可以自报关差错记录之日起( )向记录海关以书面方式申请复核,海关应当自收到书面申请之日起( )进行复核,对记录错误的予以更正。( )
A.
15日内,10日内
B.
10日内,10日内
C.
10日内,15日内
D.
15日内,15日内
【简答题】PART FOUR  WRITING SECTION A Directions: Read the following passage.Complete the diagram by using the information from the passage. Write NO MORE THAN THREE WORDS for each answer. The Chilean earthqua...
【简答题】PART FOUR WRITING SECTION A Directions: Read the following passage. Complete the diagram by using the information for the passage. Write NO MORE THAN 3 WORDS for each answer Tuvalu, a tiny country in ...
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