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【单选题】
以下对 C 语言源程序有关常识正确的描述是 ( ) 。A.
main 函数必须位于文件的开头
B.
每个语句必须单独一行
C.
标识符中大小写字母没有区别
D.
宏定义 #define 部分不一定要放在程序的最开头位置
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举一反三
【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】The prerequisites of monomers for polymerization are either ______ or ______
【简答题】识字8 人之初 第一课时 一、小雨点会落在哪?请连一连吧。 q ì yòu chū xìng jiào 初 性 教 幼 器 二、照样子,写一写。 相 远 幼 木 目 第二课时 一、重点段落品析。 玉不琢,不成器。人不学,不知义。 “...
【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
【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
【单选题】对于男性假两性畸形以下说法哪项不恰当（）
A.
促进生物合成睾酮的酶缺失或异常
B.
染色体核型为46，XY
C.
外周组织5α-还原酶缺乏
D.
临床又称作雄激素不敏感综合征
E.
以男性抚育为宜
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