公文在时间表述上务求准确，要尽量避免使用的笼统词语包括( )。 A．今年以来 B．

文师傅前几天到中心公园散步，没想到有一段新铺的路面太滑，使他重重摔倒，老人当时就疼得站不起来了，后来被热心人送到了医院。医生检查后发现老人腿部受伤，而且情况严重，需要手术治疗，因此老人现在住进了医院。记者在中心公园看到，新的路面看上去确实很漂亮，但是只要一下雨，路面就会变得非常光滑，让不少经过的人摔倒在地。一个小朋友跟记者说：“这条路走上去就像滑冰似的，不小心就会摔倒。”记者采访了公园的负责人王先生，王先生表示，他们已经发现了铺路的石头有问题，一旦路面上有水，就会变得很滑。他们现在已经在这段路上放了“小心地滑”的标志并铺上了几块防滑的地毯，而且下周就将更换路面。王先生说，文师傅的医药费全部由公园方面承担，他对文师傅及其家人深感抱歉。

小朋友对记者说的话是什么意思（）

A．公园里可以滑冰

B．下雨以后很好玩儿

C．这段路容易摔倒

D．他喜欢这种路面

电能计量装置的电能表接线方式如何规定？

据统计，到2000年底，我国九年义务教育的总规模已达到19269.5万人。这主要表明我国的义务教育具有_______这一特征[ ]

A．强制性　　　　　　

B．普及性　　　　　

C．免费性     

D．自觉性

About one million years ago,the Ice Age began.The Ice Age was a long period of time in which four great glaciers(冰川) pushed southward to cover almost all the upper half of North America,and then melted away.Each glacier was a thick sheet of ice and snow that spread out from a center near what is now Hudson Bay in Canada.The winters were long,and the cool summers were too short to melt much of the ice and snow.The evergrowing sheet built up to a thickness of two miles at its center.

As all glaciers do,these great glaciers slid(滑动). They pushed down giant trees in their paths and scraped(刮削)the earth bare(光秃秃)of soil.Many animals moved farther south to escape.Others stayed and were destroyed.

When winters of little snow came,the summer suns into the edges to the ice sheets.As the glaciers melted,rocks,soil and other things that had mixed with the ice and snow were left.New hills,lakes and rivers were formed.

The last of the great glaciers began its melting about 11 000 years ago.Itsmelting formed the Great Lakes.These lakes are today little changed from their early sizes the glaciers.This is the Mississippi Missouri Ohio system.These rivers were miles wide at first.Through the years they settle into their present channels.

The main idea of this passage is  ________ .

A.the Ice Age was a long period of time        

B.great glaciers covered North America many years ago        

C.changes in climate helped to melt the glaciers        

D.how glaciers changed North America       

2.The author states that all glaciers ________.

A.are two miles thick           B.form frozen lakes        

C.are a million years old      D.move and slide   

3.From the information in this passage we know that  ________.

A.glaciers are destructive        

B.all glaciers in the world move southward        

C.the Mississippi Missouri Ohio systems is larger than it was before the Ice Age        

D.the Great Lakes are now smaller than they were before the Ice Age

4.The Ice Age lasted almost ____.

A.1 000 years      B.100 years      C.1 000 000 years      D.11 000 years  

5.In the last sentence,the word “their” refers to  ________ .

A.lakes            B.rivers         C.glaciers             D.systems

告警解释辅助字段“AC-LOW&HIGH”，其告警解释为市电电压过高/过低告警，规范设置的市电高低范围为（）。

A.高压：250V，低压：160V

B.高压：260V，低压：187V

C.高压：242V，低压：187V

D.高压：242V，低压：160V