14.
如图所示几何体的左视图是( )
| A. | B. | C. | D. |
11.在0,-2,1,5这四个数中,最小的数是( )
| A. | 0 | B. | -2 | C. | 1 | D. | 5 |
10.下列各数中,最小的数是( )
| A. | 3-2 | B. | $\frac{2}{5}$ | C. | |-$\frac{1}{7}$| | D. | $\sqrt{2}$ |
9.
如图所示,该几何体的主视图是( )
| A. | B. | C. | D. |
8.
如图,△ABC中,DE∥BC,$\frac{AD}{DB}$=$\frac{1}{2}$,DE=2cm,则BC边的长是( )
0 283043 283051 283057 283061 283067 283069 283073 283079 283081 283087 283093 283097 283099 283103 283109 283111 283117 283121 283123 283127 283129 283133 283135 283137 283138 283139 283141 283142 283143 283145 283147 283151 283153 283157 283159 283163 283169 283171 283177 283181 283183 283187 283193 283199 283201 283207 283211 283213 283219 283223 283229 283237 366461
| A. | 6cm | B. | 4cm | C. | 8cm | D. | 7cm |