气割时，氧气纯度不应低于（）%。A、96 B、98.5 C、95 D、97

投资收益一般表现为用货币为计量尺度的财务收益，是（）的特征。

A.企业投资行为

B.公益投资行为

C.事业单位投资行为

D.政府投资行为

背一背，把下列句子补充完整，并另外再写两句。

1．你若要喜爱你自己的价值，                               。 

2．果实的事业是                     ，花的事业是                     ，但还是让我在                             做叶的事业吧。

3．我还会写：

(1)                                                                                     

(2)                                                                                    

有些该做的事情，并不是我们自愿选择的，我们应该[ ]

A、不必为此承担责任                

B、我承担，我无悔

C、采取抱怨、懈怠等消极态度对待    

D、推卸责任，置之不理

III. 阅读 (共两节，满分40分)

第一节：阅读理解（共15小题；每小题2分，满分30分）

阅读下列短文，从每题所给的四个选项（A、B、C 和D）中，选出最佳选项，并在答题卡上将该项涂黑。

As goods and services improved, people were persuaded to spend their money on changing from old to new, and found the change worth the expense. When an airline equipped itself with jets, for example, its costs (and therefore air fare) would go up, but the new planes meant such an improvement that the higher cost was justified. A new car (or wireless, washing machine, electric kettle) made life so much more comfortable than the old one that the high cost of replacement was fully repaid. Manufacturers still cry their goods as persuasively as ever, but are the improvements really worth paying for? In many fields, things have now reached such a high standard of performance that further progress is very limited and very, very expensive. Airlines, for example, go to enormous expense in buying the latest prestige jets, in which vast research costs have been spent on relatively small improvements. If we abandon these vast costs we might lose the chance of cutting minutes away from flying times; but wouldn’t it be better to see airfares drop dramatically, as capital costs become relatively insignificant? Again, in the context of a 70 m. p. h. Limit, with lines of cars traveling so close as to control each other’s speeds, improvements in performance are actually irrelevant; improvements in handling are unnecessary, as most production cars grip（抓牢） the road perfectly, and comfort has now reached a very high level. Small improvements here are unlikely to be worth the thousands that anybody replacing an ordinary family car every two years may have spent on them. Let us instead have cars — or wireless, electric kettles, washing machines, television sets — which are made to last, and not to be replaced. Significant progress is obviously a good thing, but the insignificant progression from model-change to model-change is not.

1. The author is obviously challenging the social norm (社会规范) that ________________.

A. it is important to improve goods and services

B. development of technology makes our life more comfortable

C. it is reasonable that prices are going up all the time

D. slightly improved new products are worth buying

2. According to this passage, airfares may rise because ______________.

A. the airplane has been improved

B. people tend to travel by new airplanes

C. the change is found to be reasonable

D. the service on the airplane is better than before

3. According to the author, passengers would be happier if they ____________.

A. could fly in the latest model of good planes

B. could get tickets at much lower prices

C. see the airlines make vital changes in their services

D. could spend less time flying in the air

4. When manufactures have improved the performance of their products to a certain level, then it would be _______________.

A. justified for them to cut the price

B. unnecessary for them to make any new changes

C. difficult and costly to further better them

D. insignificant for them to cut down the research costs

5. In the case of cars, the author advises that we _____________.

A. cancel the speed limit                       B. further improve their performance

C. change models every two years          D. improve their durability (耐久性)

菊花纹（黄连）、云锦花纹（大黄）是描述药材的（）

A、质地

B、表面特征

C、两者都是

D、两者都不是