1 |
b |
6x2y |
π |
-3 |
a+x |
x |
π |
y |
6 |
10 |
y |
1 |
x+y |
A.6个 | B.5个 | C.4个 | D.3个 |
1 |
b |
6x2y |
π |
-3 |
a+x |
x |
π |
y |
6 |
10 |
y |
1 |
x+y |
1 |
b |
-3 |
a+x |
10 |
y |
1 |
x+y |
x-3 |
x2 |
1 |
x2-4 |
A.x≠4 | B.x≠2 | C.x≠2或x≠-2 | D.x≠2且x≠-2 |
96 |
16-a |
A.6 | B.0 | C.8 | D.24 |
A.
| B.
| C.
| D.
|
2x+1 |
x-1 |
A.x≠-
| B.x=-
| C.x=1 | D.x≠1 |
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