皮皮学，免费搜题
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【单选题】
去年我国的三聚氰胺牛奶事件引起了全国轰动，三聚氰胺的化学式为C 3 H 6 N 6 ，下列关于三聚氰胺的叙述错误的是（ ）A.
三聚氰胺有毒
B.
三聚氰胺含有三种元素
C.
三聚氰胺中碳元素质量分数约为28.6%
D.
三聚氰胺中氢元素与氮元素的质量比是1：1
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举一反三
【单选题】What will affect the success of the new therapy?
A.
a) how well the tissue is printed
B.
b) the health of patients
C.
c) the quality of the printer
D.
d) genes
【简答题】赤潮的形成主要与下列哪种因素的关系最为密切？（ ）
【单选题】What will affect the span setting?
A.
languge vaiety and style
B.
genre and rheme
C.
register and field
D.
language variety and genre
【多选题】No one is exempt from achieving the status of old at some point. What will affect the individual?
A.
A perception of any action, or institutional structure.
B.
The individual may be an ageist with respect to others.
C.
The individual may be an ageist with respect to self.
D.
The concept of agedness is changing gradually.
【简答题】According to the passage, what will affect the phenomena of population?
【多选题】No one is exempt from achieving the status of old at some point. What will affect the individual?[Clink on 2 answers. ]
A.
A perception of any action, or institutional structure.
B.
The individuals state of being an ageist with respect to others.
C.
The individuals state of being an ageist with respect to self.
D.
one's perception of stereotypes.
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