First, mathematics:

Option: BDCACBCD

Fill in the blanks:

3/2

5/4

seven

b； second

Y=x- 1 or y=-x- 1.

8; π/3

Question 15: the first question 1/3, and the second question a=4√6/3 c= 10/3 (poor root number can make do).

Question 16: first question 1/3 second question 2/3

Question 17: this can't be typed.

Question 18: the first question y=4ex-3e, and the second question minimum value -a, f(-a-2).

The equation of the problem19: p (-2,0) is x 2/4+y 2/3 =1. The second question m=3, and then you lower it yourself. I am not good at playing.

Question 20: The first question B is not Q, but the second question. The third question pq is true.

Political choices: abcda, DBA, DC, adcbb, cacdb, Babd.

Historical choice: CBD BC ACDB CDBB BA CAAAD CCDAB DD BD CBA

Geographical selection: DCBCA CDBAA BDADD ABDBC BDABD

I have so many answers at hand, hehe, did we take the exam at the same time?