Polyurethane (PU) can be divided into linear structure and body structure according to its structure.
A: 正确
B: 错误
A: 正确
B: 错误
A
举一反三
- 2 In the data structure, from the storage structure can be divided into ( ). A: dynamic structure and static B: sequential structure and linked structure C: compact structure and non-compact structure D: linear and nonlinear structures
- According to their , buildings are mainly of wood structure, masonry structure, reinforced concrete structure, steel structure and mixed structure.
- The structure of the body text of a letter/email can be divided into ______ ______ ______
- The linked list is a linear structure adopting the storage of . A: sequential structure B: linked structure C: star structure D: net structure
- Proteins are natural polymers of amino acids with primary structure, secondary structure, tertiary structure and quaternary structure.
内容
- 0
All proteins have the primary structure, secondary structure and tertiary structure.
- 1
The _____________ structure will develop into a hierarchical structure.
- 2
Sentences can be divided into simple sentences, compound sentences and complex sentences according to their ( ). A: meaning B: function C: structure D: usage
- 3
According to the dialogue, the organizational structure of a company can be easily changed.
- 4
The β-sheet conformation of a protein can be considered an example of（） A: Primary structure B: Secondary structure C: Tertiary structure D: Quaternary structure