15 |
4 |
A.-1或-
| B.-1或
| C.-
| D.-
|
3 |
2 |
15 |
4 |
25 |
64 |
3 |
2 |
27 |
4 |
27 |
4 |
|
9 |
4 |
9 |
4 |
25 |
64 |
A.14m/s2 | B.10m/s2 | C.6m/s2 | D.4m/s2 |
1 |
2 |
A.20 | B.49.4 | C.29.4 | D.64.1 |
π |
2 |
A.k1>k2 | B.k1<k2 | C.k1=k2 | D.不确定 |
4 |
ex+1 |
A.[0,
| B.[
| C.(
| D.[
|
lim |
△x→0 |
f(x0+2△x)-f(x0) |
△x |
A.2 | B.1 | C.
| D.0 |
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