问题 解答题
计算下列各题.
2
13
×
39
16
×
4
5
8
9
÷
6
27
÷
3
4
19
21
×
17
57
÷
34
27
5
8
÷
9
4
×
27
22
答案

2
13
×
39
16
×
4
5

=

3
8
×
4
5

=0.3;

8
9
÷
6
27
÷
3
4

=4÷

3
4

=5

1
3

19
21
×
17
57
÷
34
27

=

17
63
÷
34
27

=

3
14

5
8
÷
9
4
×
27
22

=

5
18
÷
27
22

=

55
243

问答题

商鞅变法的内容 、作用

                                                                                                                                                             

                                                                                                                                                             

                                                                                                                                                             

                                                                                                                                                             

                                                                                                                                                             

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