14.下列各点在函数y=-$\frac{6}{x}$图象上的是( )
| A. | (-2,-3) | B. | (3,2) | C. | (-1,6) | D. | (-6,-1) |
13.
如图,△ABC≌△ADE,∠B=80°,∠C=30°,则∠DAE的度数为( )
| A. | 40° | B. | 80° | C. | 70° | D. | 50° |
12.当a=2时,其值为零的分式是( )
| A. | $\frac{a-2}{(a-2)^{2}}$ | B. | $\frac{2a-4}{a-1}$ | C. | $\frac{1}{a-2}$ | D. | $\frac{a+2}{2a}$ |
10.
在△ABC中,AD是BC边上的高,BE平分∠ABC交AD于点E,AB=8,DE=3,则△ABE的面积是( )
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| A. | 24 | B. | 12 | C. | 16 | D. | 11 |