皮皮学，免费搜题
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搜题
【单选题】
水银温度计破了以后应该怎么处理A.
暂时不收拾，等实验结束后再收拾扫走
B.
用手捡起散落的水银，并用扫把扫走破碎的玻璃，最后一起扔到垃圾筐
C.
洒落出来的水银必须立即用滴管、刷收集起来，并用水覆盖（最好用甘油）
D.
直接用扫把扫走水银
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皮皮学刷刷变学霸
举一反三
【单选题】(预习内容)When we say that a sample is representative of the population, we mean that
A.
the results found for the sample are similar to those we would find for the entire population.
B.
the sample is very large.
C.
the sample was chosen in the best possible way.
【单选题】If we were making inferences from a single sample, we would expect that there would be a ____ percent probability that the sample mean or proportion generated from our sample results would be within t...
A.
95.44
B.
68.26
C.
97.5
D.
99.99
【简答题】The group of people from whom we choose the sample.
【简答题】在新文化运动中,胡适作过哪些重大的贡献?
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