题目
题型:不详难度:来源:
答案
故b、c的比例中项是6.
故答案为:6.
核心考点
举一反三
A.
| B.
| C.
| D.
|
a |
5 |
b |
7 |
c |
8 |
A.14 | B.42 | C.7 | D.
|
x |
2 |
y |
7 |
z |
5 |
y |
x+y+z |
x+z |
y |
x+y-z |
x |
A.A>B>C | B.A<B<C | C.C>A>B | D.A<C<B |
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