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【简答题】
选出你听到的短语。 ( ) 1. A. Peter's kite ( ) 2. A. a green field ( ) 3. A. a fat man ( ) 4. A. a cup of tea ( ) 5. A. play the piano B. Peter's bike B. a green jacket B. a thin man B. a cup of coffee B. play the guitar C. Peter's cake C. a green peach C. a small man C. a cup of water C. play the violin
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【简答题】Monomers of _______ are linked through __ __ to form polypeptides or proteins. They can be further divided into two major categories: ___ _____ and ___ ___
【判断题】With reaction time increases, conversion of monomers and degree of polymerization increases during free-radical polymerization .
A.
正确
B.
错误
【判断题】The ratio of the amount of initiator s which are used to initiate monomers to the total amount of the decomposition or consumption of the initiator, is called the initiation efficiency.
A.
正确
B.
错误
【判断题】29 判断 The structure of repeating unit is exactly the same as that of monomers
A.
正确
B.
错误
【简答题】Answer question: What can carbohydrates be claasified according to the numer of monomers that they contain?
【简答题】The prerequisites of monomers for polymerization are either ______ or ______
【单选题】Monomers of amino acids are linked through ______ to form polypeptides or proteins.
A.
glycosidic bond
B.
peptide bond
C.
phosphodiester bond
D.
covalent bond
【单选题】Which of the following words has the meaning of “polymer of two or more different monomers”?
A.
community
B.
combination
C.
copolymer
D.
team
【多选题】DNA is a linear polymer made up of four different types of monomers. The backbone is built of repeating sugar–phosphate units. What base might be attached to each deoxyribose. ( )
A.
Adenine
B.
cytosine
C.
guanine
D.
thymine
【单选题】Which of the following type of bond or interaction joins monomers together to form biological polymers?
A.
ionoc bond
B.
van der Waals forces
C.
covalent bond
D.
hydrophobic interactions
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