滚雪球抽样_爱下问搜题

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问题名词解释

滚雪球抽样

答案

参考答案：是指通过已知的具有研究特征的调查对象寻找未知的具有研究特征的调查对象，依此类推直到达到规定的数目。

翻译题

1．I'm sorry,but I didn't mean to ________(使你心烦)．
2．Ignore the bell and go somewhere quiet to ________(使你朋友平静下来)．
3．Rescuers ________(关心) the safety of the men trapped in the fire.
4．We are surprised at ________(他对法律的忽视)．
5．Any student caught ________(作弊) in the exam will be punished.
6．The kids________(疯狂) when the film star appeared.
7．We ________(共有) the same interest and she ________(分担) my troubles as well.
8．The war brings so much ________(痛苦) that people are eager for peace.
9．Having done something wrong,he ________(不敢) go home.
10．The heavy snow prevented all the ________(与……的联系) the outside world.

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判断题

水准测量是利用水准仪提供的水平视线，借助于带有分划的水准尺，直接测定地面上两点间的高差，然后根据已知点高程和测得的高差，推算出未知点高程。