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b |
a |
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a |
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A.
| B.
| C.|
| D.|
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a |
b |
a |
b |
a |
b |
a |
b |
a |
b |
a |
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a |
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A.(-1,3) | B.[-1,3) | C.(-1,1) | D.[-1,1) |
A.f(-x1)>f(-x2) | B.f(-x1)=f(-x2) |
C.f(-x1)<f(-x2) | D.f(-x1)与f(-x2)大小不确定 |
π |
3 |
1 |
4 |
A.y1<y3<y2 | B.y1<y2<y3 | C.y3<y1<y2 | D.y3<y2<y1 |
1 |
4 |
A.(0,
| B.(
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C.(0,
| D.(
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A.f(x)是偶函数 | B.f(x)是奇函数 |
C.f(x)=f(x+2) | D.f(x+3)是奇函数 |
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