题目内容

How long did Ruby spend on her Halloween costume?

A. Several days.
B. Several hours.
C. Several weeks.
D. Several minutes.

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Who is responsible for making the jack-o’-lanterns in Ruby’s family?

A. Her parents.
B. Her sister and she.
C. Her sister.
D. The whole family.

According to the dialogue, who will lead the way when going out trick-or-treating?

A. Tommy.
B. Ruby.
C. Ruby’s sister.
D. Tommy and Ruby.

马克思主义确认社会生活在本质上是实践的,也就是把社会生活“当作实践去理解”。社会生活是对人们各种社会活动的总称。社会生活的实践性主要体现在( )。

A. 实践是社会关系形成的基础
B. 实践形成了社会生活的基本领域
C. 实践构成了社会发展的动力
D. 实践具有多样的形式

JPEG 2000有许多功能,请用因特网搜索工具调查和描述它的详细功能,并解释为什么JPEG2000格式没有流行起来。

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