问题 解答题
2
3
÷
3
4
×
1
2
=a______.
答案

2
3
÷
3
4
×
1
2

=a×

3
2
×
4
3
×
1
2

=a×(

3
2
×
4
3
×
1
2
),

=a×(2×

1
2
),

=a×1,

=a;

故答案为:正确.

单项选择题
判断题