浙江大学
第一章单元测试
- Which of the following is NOT a way to express the precision of a method? （ ）
- Which of the following is an inexact quantity? （ ）
- What should you bring to the laboratory each time in this class? （ ）
- Which statements about lab-notebook are correct? （ ）
- Keep backpacks and other non-essential materials away from the laboratory benches(实验台). （ ）
A:nearness to the true value B:standard deviation(标准偏差) C:confidence interval(置信区间) D:standard uncertainty
答案:nearness to the true value
A:The number of grams in a kilogram B:The reaction ratio of H2 and O2 to produce H2O C:The number of people in your chemistry class D:The mass of a penny
答案:The mass of a penny
A:lab coat B:safety goggles C:lab manual D:some food
答案:lab coat###safety goggles###lab manual
A:should be prepared before coming to laboratory B:should be bound C:can tear a page out casually D:use a pencil to write on it
答案:should be prepared before coming to laboratory###should be bound
A:错 B:对
答案:对
温馨提示支付 ￥3.00 元后可查看付费内容,请先翻页预览!
