墙、地面防水、防潮工程适用于（） A.楼地面 B.墙身 C.构筑物

- 2 5 的相反数是______，它的倒数是______．

大咯血时最危险的并发症是

A．出血性休克

B．贫血

C．肺不张

D．肺部感染

E．窒息

My six-year-old granddaughter stared at me as if she were seeing me for the first time.”Grandma, you are an antique(古董),”she said. "You are old. Antiques are old. You are my antique."

I was not satisfied to let the matter rest there. I took out the Webster's Dictionary and read the definition(定义)to Jenny.I explained, "An antique is not only old, it's an object existing since or belonging to earlier times...a work of art... piece of furniture. Antiques are treasured,"I told Jenny as I put away the dictionary. "They have to be handled carefully because they sometimes are very valuable. In order to qualify as an antique, the object has to be at least 100 years old."

"I'm only 67,"I renunded Jenny.

We looked around the house for other antiques, besides me. There was a desk that was handed down from rone aunt to another and finally to our family. "It's very old,"I told Jenny.“I try to keep it polished and I show it off whenever I can. You do that with antiques."

There was a picture on the wall purchased at a garage sale. It was dated 1867. "Now  that's an antique," I boasted. "Over 100 years old." Of course it was marked up and scratched and not in very good condition. "Sometimes age does that," I told Jenny. "But the marks are good marks. They show living, being around. That's something to display with pride. In fact, sometimes, the more an object shows age, the more valuable it can become." It was important that I believed this for my own self-esteem.

Our tour of antiques continued. There was a vase on the floor. It had been in my house for a long time. I was not certain where it came from but I didn't buy it new. One thing about antiques, I explained to Jenny, was that they usually had a story. They'd been in one home and then another, handed down from one family to another, traveling all over the place. They'd lasted through years and years. They could have been tossed away, or ignored. or destroyed, or lost. But instead, they survived.

For a moment, Jenny looked thoughtful. “l don't have any antiques but you," she said. Then her face brightened. "Could I take you to school for show and tell?"

"Only if I fit into your backpack," I answered. And then Jenny's antique lifted her up and embraced her in a hug that would last through the years.

小题1:Grandma read the definition of "antique" to Jenny in order to         .

A．list all the important characteristics of antiques

B．tell Jenny the importance of protecting antiques

C．change Jenny's shallow understanding of antiques

D．express her disappointment at being called "antique"小题2:Which of the following information did grandma convey to Jenny?

A．The desk reminded her of her dear relatives.

B．The marks on the picture showed its age and value.

C．There was usually a sad story behind each antique.

D．She planned to buy a new vase to replace the old one.小题3:By saying "I don't have any antiques but you" (Paragraph 7), Jenny meant         .

A．grandma was a treasure to her

B．antiques were rare and valuable

C．she had nothing but a few possessions

D．grandma and antiques had a lot in common小题4:What can be inferred from the last paragraph?

A．Grandma was too old to lift Jenny up.

B．Jenny had a strong desire for grandma's love.

C．Jenny was too young to know grandma's humor.

D．Grandma had a deep long-lasting love for Jenny.小题5:What can be the best title for the passage? 

A．Jenny's Antique

B．A Story of Antiques

C．A Tour of Antiques

D．Grandma's Antique

请根据所提供的原始单据，按照报关单填制规范的要求。在报关单相对应的选项中，选出最合适的答案。

资料1

根据上述材料，指出下列栏目的正确选项：

“运输方式”栏（）。

A．航空运输

B．江海联运

C．江海运输

D．管道运输

阅读下列说明和图表，回答问题1到问题3。
[说明]
在多道程序系统中，各个程序之间是并发执行的，共享系统资源。CPU需要在各个运行的程序之间来回地切换，这样的话，要想描述这些多道的并发活动过程就变得很困难。为此，操作系统设计者提出了进程的概念。
进程是具有独立功能的程序关于某个数据集合上的一次动态执行过程，是系统进行资源分配和调度的独立单位。

进程调度算法解决以何种次序对各就绪进程进行处理机的分配以及按何种时间比例让进程占用处理机。
常见的的调度算法有：先进先出FIFO(按照进程进入就绪队列的的先后次序选择)、时间片轮转RR(进程轮流运行一个时间片)、最高优先级HPF(分配给具有最高优先级的就绪进程)。
在实际系统中，调度模式往往是几种调度算法的结合。某系统按优先级别设置若干个就绪队列，对级别较高的队列分配较小的时间片S_i(i=1，2，…，n)，即有S₁＜S₂＜…n。除第n级队列是按RR法调度之外，其他各级队列均按FIFO调度。系统总是先调度级别较高的队列中的进程，仅当该队列为空时才去调度下一级队列中的进程。当执行进程用完其时间片时便被剥夺并进入下一级就绪队列。当等待进程被唤醒时，它进入其优先级相应的就绪队列，若其优先级高于执行进程，便抢占CPU执行进程。
现有五个进程P1、P2、P3、P4、P5，它们同时依次进入就绪队列，它们所需的CPU时间和优先级如图4-2所示。注意，优先数越大优先级越低。
[图4-2]

进程	CPU时间	优先数
P1	10	3
P2	1	1
P3	2	3
P4	1	4
P5	5	2

在该系统中，假定不同级别的时间片为S¹=2^i-1(i为优先数)，请给出五个进程的CPU占用序列，并注明每次占用所用的时间。

从下列的3道试题(试题五至试题七)中任选1道解答。如果解答的试题数超过1道，则题号小的1道解答有效。