1、SAS②SSS; ③ Atomic absorption spectrometry
2. The corresponding sides of congruent triangles are equal.
3、5
4, from AB=AD,? BAC=? DAC, then BC=DC
5. A.
6. Omission
Comprehensive? promote
7. Omission
8, because BD=DF, DE=DM,? BDE=? medium density fiberboard
So △ de△ ?△FDM, so? BEM=? electromotive force (EMF)
There is only one straight line parallel to the known straight line at a point outside the straight line, so A, C and E are on the same straight line.