本课配套习题挑战模式4/5
单选题
难度系数:
4.下列关于时间和时刻的几种说法中,正确的是
A: 时间和时刻的区别在于长短不同,长的为时间,短的为时刻 |
B: 两个时刻之间的间隔还是时刻 |
C: 第3s末和第4s初是同一时刻 |
D: 第3节下课和第4节上课是同一时刻 |
一次做对,真牛!
+5奖励规则>
- 提示1:5pe26Ze05piv5oyH5pe26Ze055qE6ZW/5bqm77yM5Zyo5pe26Ze06L205LiK5a+55bqU5LiA5q616Led56a777yM5pe25Yi75piv5oyH5pe26Ze054K577yM5Zyo5pe26Ze06L205LiK5a+55bqU55qE5piv5LiA5Liq54K5
- 答案:Qw==
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
本课配套习题挑战模式5/5
单选题
难度系数:
5.下列关于误差的说法中,正确的是()
A: 多次测量取平均值可以减小误差 |
B: 误差就是测量中产生的错误 |
C: 只要认真测量,就可以避免误差 |
D: 选用精密的测量仪器可以消除误差 |
一次做对,真牛!
+5奖励规则>
- 提示1:6K+v5beu5LiN5piv6ZSZ6K+v77yM5ZCM5pe25Y+I5LiN5Y+v6YG/5YWN44CC
- 答案:QQ==
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