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【简答题】
What is cyber bullying?Cyber bullying is when a child or a teenager is threatened or otherwise targeted by another child or teenager using the Internet or mobile phones. In cyber bullying there is no adult involved, only children or teenagers.The methods used are limited only by the child's imagination and access to technology. The children often change roles, going from victim to bully and back againChildren have killed each other and committed suicide after having been involved in cyber bullying.Parents may be more worried about the language used by the kids and not recognize the seriousness of the situation.Most of the time the cyber bullying does not go so far as to get the police involved. However, if it involves passwords being hacked or stolen it can then be a police matter.Schools can be very effective as a go-between and have been known to work successfully with parents to stop the situation.Answer the questions.What effect can cyber bullying have?
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举一反三
【简答题】已知圆锥的侧面积为15πcm 2 ,底面半径为3cm,则圆锥的高是______.
【简答题】已知圆锥的底面半径是2cm,母线长为5cm,则圆锥的侧面积是____ cm 3 (结果保留π)
【简答题】已知圆锥的底面半径是2cm,母线长为3cm,则圆锥的侧面积为(    )。
【多选题】对用户研究的方法有( )
A.
观察法
B.
草图法
C.
访谈法
D.
头脑风暴法
【判断题】连锁和孟德尔的自由组合是违背的。
A.
正确
B.
错误
【单选题】患者女性,32岁,患急性腹膜炎,现呼吸深快,口唇樱红,呼气有烂苹果气味,嗜睡,血压偏低,诊断首先考虑为
A.
呼吸性酸中毒
B.
代谢性酸中毒
C.
呼吸性碱中毒
D.
代谢性碱中毒
E.
低钾血症
【多选题】用户研究的方法有()
A.
定量分析法
B.
定性分析法
C.
实证研究法
D.
实验法
【判断题】决策时通常用差量成本用来判断增加或减少某一种产品的生产(销售)数量在经济上是否合算。()
A.
正确
B.
错误
【简答题】已知圆锥的底面半径是2cm,母线长为3cm,则圆锥的侧面积为______cm 2 .
【多选题】在【1-5 用户研究方法】视频中个,提到的用户研究的方法有以下哪些项?
A.
定性研究法
B.
实验法
C.
实证研究法
D.
定量研究法
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