关于价值链分析，下面描述正确的有( )。 A．价值链是公司用来理解成本定位的模板

根据短文内容，按要求答题。（回答81—85题时，不得超过八个单词。）

A forest fire that burned 55 square kilometres was finally brought under control on Wednesday morning. The fire started on Sunday in Black Bear State Park and quickly spread to nearby areas.

On Monday, police evacuated（疏散） the small town of Lawson and ordered the people to leave their homes. The fire destroyed 20 homes in the area and caused heavy damage to 40 others.

Nobody was hurt. Officials said the damage to homes and cars was between $l million and $2 million. The government declared the town a disaster (灾难) area. The fire spread quickly in the hot, dry weather. Fire fighting was difficult because of strong winds. Firemen from 55 fire departments in the state joined the National Fire Service to put out the fire. Some kept fighting for 24 hours. Fire engines and helicopters dropped water onto the fire. In order to control the fire, firemen cleared a way around the fire.

Police closed King Road to traffic on Tuesday because of heavy smoke. Thousands of tourists had to drive an hour north to Queen Road to pass the fire area.

Some people did not follow the police order. Paul Grayson sent his wife and two children to safety, but he stayed. As the fire came within 50 feet of his house, he started thinking, “Am I foolish? Did I stay here too long, just for a house?”

小题1:When and where did the forest fire start?

小题2:What did the police order the people to do?

小题3:Why was fire fighting difficult?

小题4:How did the firemen drop water onto the fire?

小题5:What kind of person do you think Paul Grayson was?

填补下列名句的空缺处或按要求填空。

（1）但愿人长久，______________________________。

（2）______________________________，病树前头万木春。

（3）安得广厦千万间，______________________________。

（4）______________________________，欲上青天揽明月。

（5）______________________________，处江湖之远则忧其君。

（6）不戚戚于贫贱，______________________________。

（7）《白雪歌送武判官归京》一诗中采用春景写冬景的一句是______________________，______________________________。

（8）《过零丁洋》中表现文天祥宁死不屈精神的一句是：“___________________________，____________________________。”

（9）请写出古诗词中表现无私奉献精神的句子：____________________________，____________________________。

运算器在执行两个用补码表示的整数加法时，下面判断是否溢出的规则中哪一个是正确的( )

A．两个整数相加，若最高位(符号位)有进位，则一定发生溢出

B．两个整数相加，若结果的符号位为0，则一定发生溢出

C．两个整数相加，若结果的符号位为1，则一定发生溢出

D．两个同号的整数相加，若结果的符号位与加数的符号位相反，则一定发生溢出

提前抵达

阿托品应用于麻醉前给药主要是

A．兴奋呼吸

B．增强麻醉药的麻醉作用

C．减少呼吸道腺体分泌

D．扩张血管改善微循环

E．预防心动过缓