a 1-6 daddcc； 7-9:7,6, 14, 123。 Second,1-5 ccdca; 6- 1 1:56 ,74 ,3,23,90,6。 1-4c DBC； 5- 1 1 axisymmetric figure, translation, 75,70,8 ㎝, 5,4 or 5,120,30. IV 1-9:CCBDCDBDA； 10- 15:①, ②, ③, BE, northwest 4.5CM, 60, 7.5, 60. v 1- 10:badcdddcb； 11-1 9: 9/12, -2, plus or minus 7,0,5 or-1,9,0, radical number 2 and radical number 3, where n+1. 1 1- 15y = 1/2x，y = x+4，-3，y = 90/x，9.7 1-9 abcdddb； 10- 14③, y= 1/2x+ 13(0 is less than or equal to symbol x and less than or equal to symbol 16), y= 1.8x-6, y = 20. 1 1- 16: 3, 5 ... I just write here, (please adopt or score)