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问题
单项选择题
辩证唯物主义认识论首要的和基本的观点是()
A.唯物论的观点
B.辩证法的观点
C.实践的观点
D.可知论的观点
答案
参考答案:C
问答题 简答题
火车顶部采集洗煤样,其采样精密度是如何规定的?
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解答题
1、
1
6
+
1
8
=
1
25
÷
1
100
=
1
3
÷
1
4
=
5
6
÷
1
6
=
4
5
-
3
5
=
1
6
÷
5
6
=
5-
1
6
=
7
20
÷
1
4
=
1
6
+
1
5
=
3
5
×
1
6
=
1
2
×
4
5
=
1
6
×3=
1
2
×
2
5
=
1
4
-
1
5
=
5
8
-
1
4
=
9
10
-
9
20
=
2
3
÷
1
8
=
1
5
+
1
50
=
7
8
-
3
4
=
1
3
-
1
6
=
5
6
×
3
5
=
3
10
×135=
1
3
+
2
5
=
1
5
+
3
2
=
2
3
×
2
5
=
1
10
+
3
5
=
6
7
-
1
5
=
7
8
-
1
6
=
6
25
÷
1
5
=
9
80
-
1
10
=
18×
5
9
=
1
7
÷
1
4
=
1
10
÷
2
15
=
7
60
÷
1
30
=
1
7
÷
5
7
=
1
5
+
1
6
=
2.4×20=
0.12×3=
0.45×2=
3×1.5=
1.2÷0.3=
1÷2=
4.8×100=
4÷0.2=
0.25×8=
0.89÷8.9=
17.8+2.2=
4.2×5=
0.8÷0.2=
5.79÷0.1=
0.35+0.65=
3.4-1.5=
8.9-0.9=
9.2-9.2=
3.6÷0.4=
0.7×11=
15.15÷15=
0.2×0.3=
1.34×4×2.5=
0.9÷4.5=
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