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【单选题】
关于有效数字,说法正确的是A.
所有的数字都是有效数字
B.
有效数字是指在测量工作中实际能测到的数字
C.
0.3和0.3000是一样的
D.
当改变数据单位时，可以改变有效数字位数
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皮皮学刷刷变学霸
举一反三
【简答题】Exercise A : Listen to the dialogue and decide whether the following statements are true or false. Write T or F in the space provided, Discuss with your classmates why you think the statement is true ...
【简答题】When the father and the son seperated,what did the father say?
【简答题】根据文章填空 Is the father the same when in the factory and at home? What does the father often say? How does the boy feel? The father and the son are tolly different. What does the boy wish?
【判断题】When the father came in, one of the girls was lying on the settee and the other was doing her homework.
A.
正确
B.
错误
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