17.若反比例函数y=$\frac{k}{x}$(k≠0)的图象经过点A(-2,1),则当x<-1时,函数值y的取值范围是( )
| A. | y>2 | B. | -2<y<0 | C. | y>-2 | D. | 0<y<2 |
16.
如图:△ABC中,AC=6,∠BAC=22.5°,点M、N分别是射线AB和AC上动点,则CM+MN的最小值是( )
| A. | 2$\sqrt{2}$ | B. | 2$\sqrt{3}$ | C. | 3$\sqrt{2}$ | D. | 3 |
10.
如图,E是?ABCD内任一点,若S?ABCD=8,则阴影部分的面积是( )
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| A. | 3 | B. | 4 | C. | 5 | D. | 6 |