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【单选题】
是14世纪意大利新艺术最著名的音乐家。（）A.
B.
兰迪尼
C.
蒙特威尔第
D.
邓斯泰布尔
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举一反三
【简答题】Today a new generation of sociologists continues to further study the puzzle of ______.
【单选题】According to Paragraph 2, a new study finds that______.
A.
learning a new language can benefit a lot when you grow old
B.
you have to learn a new language at a very young age
C.
picking up a new language have few benefits later in life
D.
picking up a new language can cause serious health problems
【多选题】已知由同种元素组成的不同种单质，互称为同素异形体。例如金刚石和石墨是同素异形体，红磷和白磷也是同素异形体。某同学查阅有关资料得知：铁有δ-Fe、γ-Fe、α-Fe三种同素异形体。三种晶体在不同温度下能发生以下转化。下列有关说法正确的是 [ ]
A.
构成它们的原子大小不同
B.
δ-Fe、γ-Fe、α-Fe之间的相互转化是化学变化。
C.
δ-Fe、γ-Fe、α-Fe一定由不同种类的铁原子构成
D.
δ-Fe、γ-Fe、α-Fe里铁原子的排列不同
【单选题】( ) is the study of the various aspects of the relation between language on the one hand and speakers and society on the other.
A.
Pragmatics
B.
Sociolinguistics
C.
Syntax
D.
Semantics
【简答题】A new study shows a relationship between fast walking and life expectancy. For this study, researchers looked at walking speed and other health factors for almost 35,000 older s. They followed th...
【简答题】Having a child may improve a woman’s memory, a new study suggests. In the study, women who were new mothers scored better on tests of visuospatial memory – the ability to understand and remember infor...
【简答题】Moving to a new town or even a new neighborhood is stressful at any age, but a new study shows that frequent moves in childhood are related to poorer well-being(幸福) in hood, especially among peop...
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