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【单选题】
下列模型中，（ ）是描述聚合物非晶态结构的局部有序模型。A.
40年代Bryant提出缨状胶束模型
B.
50年代英籍犹太人Keller提出的折叠链结构模型
C.
50年代Flory提出无规线团模型
D.
70年代美籍华人Yeh提出两相球粒模型
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参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】When a bacteriophage is mixed with its host counterpart, a transparent plaque is formed on the medium called
A.
Dry spot
B.
plaque
C.
Disease spot
D.
colony
【单选题】Peter’s jacket looked just the same as Jack’s,but it cost his.
A.
as much twice as
B.
twice as much as
C.
much as twice as
D.
as twice much as
【简答题】dental plaque biofilm
【简答题】dental plaque
【简答题】斑块(plaque)
【简答题】Flossing, an essential part of the tooth-cleaning process, removes plaque between teeth and at the gumline, the breeding ground for ______.
【单选题】Could you just give me a hand? Let's ______ the car into motion it got a flameout just now.
A.
shove
B.
nudge
C.
prompt
D.
poke
【简答题】题干 dental plaque biofilm
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