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计算：83·43÷25
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教案备课库《八（2）年级数学作业12.1.4同底数幂的除法作业》真题及答案
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前方标志表示向左是单向行驶道路
突然出现这种情况驾驶人要及时减速或停车避让
计算溶液泡点时若则说明
温度偏低
正好泡点
温度偏高
正好露点
请从所给的四个选项中选择最适合的一个填在问号处使之呈现一定的规律性
A
B
C
D
计算积分值=
半径为R的圆管中横截面上流速分布为其中r表示到圆管轴线的距离则在r1=0.2R处的黏性切应力与r2=
5
25
1/5
1/25
已知且则的最小值为
6
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25
36
计算-=．
已知13+23+33+43+53+63=441则23+43+63+83+103+123的值是
3968
3188
3528
2848
计算＋＝_________
用简便方法计算．201×2443×29-9×43557-75-1252100÷25÷4630÷453
已知a≥0函数fx＝x2－2axex若fx在[－11]上是单调减函数则a的取值范围是
0
a≥
0
57+83+43=83+57+43这一步计算只应用了加法交换律．．判断对错
log43＋log83log32＋log92.
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