ex |
1+ex |
1 |
3 |
A.log
| B.log2e | C.
| D.-ln2 |
1 |
3 |
ea |
1+ea |
1 |
3 |
1 |
2 |
A.10x-1 | B.1-10x | C.1-10-x | D.10-x-1 |
x-1 |
A.y=x2-2x+2(x<1) | B.y=x2-2x+2(x≥1) |
C.y=x2-2x(x<1) | D.y=x2-2x(x≥1) |
1 |
2 |
A.(
| B.(1,
| C.(1,0) | D.(0,1) |
1 |
x-3 |
A.y=
| B.y=
| C.y=x+3(x∈R) | D.y=x-3(x∈R) |
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