π |
4 |
3 |
2 |
A.y=
| B.y=
| ||||||||||||
C.y=2x+
| D.y=x+
|
π |
4 |
3 |
2 |
π |
4 |
3 |
2 |
π |
4 |
A.x+y+2=0 | B.x+y-2=0 | C.x-y+2=0 | D.x-y-2=0 |
1 |
2 |
A.
| B.1 | C.
| D.
|
A.(1,0) | B.(2,8) | C.(1,0)和(-1,-4) | D.(2,8)和(-1,-4) |
1 |
3 |
1 |
2 |
b-2 |
a-1 |
A.(
| B.(
| C.(-
| D.(
|
lim |
△x→0 |
f(1+△x)-f(1) |
△x |
A.1 | B.2 | C.
| D.2+△x |
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