题目内容

Some people are addicted to anxiety because
[A] they consider the state of anxiety as a normal situation.
[B] they enjoy being in the state of feeling anxious.
[C] they have negative attitudes towards life.
[D] anxiety keeps them bored and empty inside.

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如图，在一根长ll厘米，外圆周长6厘米的圆柱形柱体外表面，用一根细铁丝缠绕，组成10个螺旋，如果铁丝的两端恰好落在圆柱的同一条母线上，则铁丝长度的最小值为()。

听力MP3及原文下载地址：http://www.shangxueba.com/share/p3329869.html
SECTION A CONVERSATIONS
In this section you will hear several conversati0ns. Listen to the conversations care fully and then answer the questions that follow.
Questions 1 to 3 are based on the following conversation. At the end of the conversation, you will be given. 15 seconds to answer the questions.
Now, listen to the conversation.
Which is NOT true of the man？
[A] He is new in the Department.
[B] He gets along well with others.
[C] He is in charge of a project.
[D] He is from Scotland.

同时打开直径为A与直径为B的水龙头放水，1分钟后能够装满水槽．如果只打开直径为A的水龙头，要花多少(T)分钟才能装满？

[A] mechanical
[B] material
[C] relevant
[D] absolute