吸烟、网络成瘾、对某种行为的依恋等行为问题在青少年阶段爆发的原因是（ ）
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一个青少年在父母没有满足他的需要时，内心情感波动剧烈产生轻生的念头，这种现象体现了青少年的（ ）。
青少年对某些行为产生依恋或者倾向性，应该怎样改变这种不良的行为倾向？
Exercise 1:Listening for general understandingListen to the recording once and then choose the right answers to the questions you hear.1.What does the conversation mainly tell us?
A. The university provides two types of accommodation.
B. Students must apply early since the places in university-owned accommodation are limited.
C. A student can choose from university-owned accommodation or private accommodation.
D. Most students prefer self-catering accommodation.
Which of the following is not included in the conversation?
A. The cost for self-catering accommodation.
B. The location of the self-catering accommodation.
C. Where to get help about finding private accommodation.
D. The cost for private accommodation.
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