跪求答案.谢谢

1. 跪求答案.谢谢

请在此输入您的回答

2. 跪求答案，谢谢。

conflict

exchange

built

face up to

realistic

vividly

loosening

ignored

interested

famous

分割线!!!!!

1 D who it is

2 C why

3 B won

4 C weeding

5 C friendship

6 A which

7 B so; that

8 D to learn

9 C take

10 A looking

分割线!!!!

1.Relatively speaking, that is not important.

2. We cannot take on anymore tasks.

3. I have been studying English all the morning, writing and reading.

4. Men who are not married are incomplete.

5. I would like to recommend that hotel to you, its service is very good.

分割线
A brown wallet has been found on the fourth floor of the school. There was cash inside. If you recently lost a wallet, please come to the English Department to identify and claim it.

The English Department

November 20, 2014

3. 跪求答案。谢谢

4. 跪求答案谢谢。

5. 跪求答案。谢谢

6. 跪求答案，谢谢啦

1.  C         2.  D          3.  B            4.  D            5.   C
6.  D         7.  D          8.  C            9.  C           10.  B

7. 跪求答案谢谢。

8. 跪求答案。谢谢

（a1+a20）*20/2=98*10=980
第七项的绝对值是25，符号为正号。因此是25
a4=[（-1）^(4+1)]  *0.5*(3^4-1)=-1*0.5*80= -40
n的系数2 即为公差
比如a1=2*1-5=-3
      a2=2*2-5=-1
公差d=a2-a1=-1-(-3)=2