风险估测过程中，损失概率的定量估计应主要考虑的因素是( )。 A．风险单位数、损失

隋唐时期社会全面繁荣，史学家们在总结其原因时，曾归结为“得益于政治制度的创新、成熟与完善”，三省六部制的成熟与完善体现在[ ]

A．既削弱了相权，巩固了皇权，又提高了行政效率

B．官员责任明确，分工细密

C．机构运作程序合理

D．负责皇家与国家的官署和管理相互脱离而自成系统

同步注浆的浆液稠度须控制在（）范围内。

A.10～11cm 

B.10.5～11.5cm 

C.11.5～12.5cm

阅读理解

     根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。

                                                     The Meanings of Dreams

     Sleep and dreams have interested people for centuries. Scientists are learning more about sleep, but

they still know very little about why we dream. 

       1   First, we have most of our dreams during REM (rapid eye movement) sleep. At this time, the

brain is very active. Second, everyone dreams - even if we cannot remember doing so when we awaken.

    2   While we are asleep, it works more slowly and sometimes puts our thoughts and memories together

in strange ways. 

        3   Some believe that our dreams are associated with thoughts and feelings that we experience

while we are awake. Many dream researchers think that a dream about death, for example, is really

about an important life change.    4   Dreams about a car or travel often represent feelings about your

own life. Dreams about teeth - especially broken or loose ones may indicate stress and fear. Dreams in

which you are flying often represent freedom or escape.

    Researchers think people in our dreams can tell us something about ourselves. If the person in the

dream was yelling (叫喊), for example, maybe you are angry.    5  

    There is still a lot about dreaming that we do not understand. By learning more about our dreams, we

may learn more about ourselves.

A. Dreams may be more important than sleep.

B. Scientists do not know for certain why we dream.

C. If he or she was terrified, then maybe you are afraid of something.

D. Modern research can tell us some important things about dreams.

E. There are three things you should pay attention to to have a sweet dream.

F. Finally, a part of our brain helps us to understand daily experiences we have.

G. Dreams about telephones are thought to be about giving or receiving an important message.

写作。

     李华明年参加高考，在校学习成绩很好，但是他在做完作业后喜欢长时间看电视，而

他的父母强烈反对，怕看电视会影响成绩，他却不这样认为。请你就此话题写一篇短文。

     注意：

     1. 词数为120--150左右；

     2. 开头已为你写好（不计入总词数）；

     3. 可以适当发挥，以使行文连贯

     Li Hua is one of the top students in his school. ____________________________________

_____________________________________________________________________________

以下不属于网桥的特点的是______。

A．使用网桥连接的网络在数据链路层以上采用相同或兼容的协议
B．使用网桥可以隔离冲突域
C．使用网桥可以接收、存储、地址过滤及转发数据
D．网桥处理接收到的数据，降低了时延，提高了网络性能