卵石按其产源可分为（）等几种。 A．河卵石 B．海卵石 C．山卵 D．江卵石 E．湖

观察各种死亡原因所占的比重大小，最好绘制的图形为

A．直条图

B．直方图

C．圆图

D．普通线图

E．半对数线图

用适当的关系代词或关系副词填空 。

1.The songs____ the S.H.E.sing are very popular.    

2.The girl         I just talked with is Ben's sister.

3.I don't understand the three questions        are asked in French.

4.This is the pen____1 wrote the letter with.    

5.Have you seen the film ''Titanic'',        leading actor is world-famous?    

6.Tom is trying to read in the room        the others are watching TV.    

7.This is the most interesting film        I have ever seen.    

8.Which is the bike         you lost?    

9.Do you still remember the days        we lived on the farm?   

10.The man        you met in the supermarket is a famous poet.

A．可以识别子网

B．可以区分掩码和网关

C．用来寻找网关

D．可以区分IP和MAC

适用于所谈条款的内容属于并列式的互相联系的几个问题的谈判方式是（）

A.从属式谈判

B.独立式谈判

C.纵向谈判

D.横向谈判

下面这首古诗描述了我国民间一个传统节令的景象，这个节令是_______．中庭地白树栖鸦，冷露无声湿桂花． 225今夜月明人尽望，不知秋思落谁家

A．重阳

B．七夕

C．中秋

D．元宵