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问题 选择题

如下图所示为某有机物加入酶后，置于0℃至80℃环境中，有机物的分解总量与温度的关系图。根据该图判断，如果把这些物质置于80℃至0℃的环境中处理，在A～D四图中，符合其关系的图是(注：纵坐标为有机物的分解总量)

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A．

B．

C．

D．

答案

答案：B

单项选择题

Traditional IP packet forwarding analyzes the____(1)____IP address contained in the network layer header of each packet as the packet travels from its source to its final destination．A router analyzes the destination IP address independently at each hop in the network．Dynamic ____(2)____protocols or static configuration builds the database needed to analyze the destination IP address(the routing table)．The process of implementing traditional IP routing also is called hop—by—hop destination—based____(3)____routing．Although successful，and obviously widely deployed，certain restrictions，which have been realized for some time，exist for this method of packet forwarding that diminish its____(4)____．New techniques are therefore required to address and expand the functionality of an IP—based network infrastructure．This first chapter concentrate on identifying these restrictions and presents a rew，architecture，known as multipIeprotocol____(5)____switching，that provides solutions to some of these restrictions．

(4)

A．reliability

B．flexibility

C．stability

D．capability
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翻译题


阅读下列各小题，根据汉语提示，用句末括号内的英语单词完成句子。
1. when you deal with this chemical,as it will explode when __________________.  (expose)
处理这种化学物质时要小心,因为它暴露在阳光下时会爆炸.
2. Nowadays young people just can't live without the Internet, _______________for whatever
information they need. (depend)
    如今的年轻人离开因特网就无法生活,他们依靠它获取自己所需信息.
3. A hobby is what you never get tired of - ____________________, the more fun you will have.
(devote)
爱好是不会让你感到厌倦的- 你投入的时间越多,获得的乐趣越多..
4. So______________________________ on the phone that we knew there would be good news.
(voice)
他的声音在电话中听起来如此地激动,以至于我们都知道会有好消息.
5. Part of the reason why he is absent is , I think, that he __________________the meeting.(inform)
我想他缺席会议的部分原因是他可能没被通知.
6. ___________________________________, professor Smith went straight to the laboratory to
continue his experiments.(have)
理完发后,Smith 教授径直到了实验室,继续他的实验.
7. Whatever you have picked up, you should give it back to_____________________.(belong)
无论你捡到什么东西,你都应该物归原主.
8. Her father gave her advice on learning English _________________________________as much
as possible.(employ)
    她的父亲建议她学英语时尽可能多用它.
9. We are designing an experiment to find out if __________________________________ when it
is cold.(break)
我们正在设计一个实验,想弄清楚当天冷时,玻璃是否更容易破裂.
10. _____________________ she is not so cheerful as she used to be?(why)
她没有以前那么高兴究竟是为什么呢?
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