问题 解答题
135×
8
15
=______
120×
7
2
×
3
14
=______
1
3
×
2
3
=______
2
7
×
21
10
×
4
5
=______.
答案

135×
8
15
=72,
120×
7
2
×
3
14
=90,
1
3
×
2
3
=
2
9
2
7
×
21
10
×
4
5
=
12
25
故答案为:72,90,
2
9
12
25

配伍题 B1型题
单项选择题