如图所示，一个长L1=0.9m、宽L2=0.6m的光滑斜面体，其倾角θ=30°．

－Sixteen-year-olds should _____ to drive.

－I agree. They aren't serious enough at that age. [ ]

A. not be allowed

B. be allowed

C. not be allow

D. be allow

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)

阅读下面短文，从每题所给的A、B、C和D项中选出最佳选项，并在答题卡上将该项涂黑。

In 1993, New York State ordered stores to charge a deposit on beverage (="drink)" containers. Within a year, consumers had returned millions of aluminum cans and glass and plastic bottles. Plenty of companies were eager to accept the aluminum and glass as raw material for new products, but because few could figure out what to do with the plastic, much of it wound end up buried in landfills(垃圾填埋场). The problem was not limited to New York. Unfortunately, there were too few uses for second-hand plastic.

Today, one out of five plastic soda bottles is recycled in the United States. The reason for the change is that now there are dozens of companies across the country buying discarded plastic soda bottles and turning them into fence post, paint brushes, etc.

As the New York experience shows, recycling involves more than simply separating valuable materials from the rest of the rubbish. A discard remains a discard unti1 somebody figures out how to give it a second life — and until economic arrangements exist to give that second life va1ue.Without adequate markets to absorb materials collected for recycling, throwaways actually depress prices for used materials.

Shrinking landfill space and rising costs for burying and burning rubbish are forcing local governments to look more closely at recycling. In many areas, the East Coast especially, recycling is already the least expensive waste-management option. For every ton of waste recycled, a city avoids paying for its disposal, which, in parts of New York, amounts to savings of more than $100 per ton. Recycling also stimulates the local economy by creating jobs and reduces the pollution control and energy costs of industries that make recycled products by giving them a more refined raw material.

1. What regulation was issued by New York State concerning beverage containers?

A. A fee should be charged on used containers for recycling.

B. Throwaways should be collected by the state for recycling.

C. Consumers had to pay for beverage containers and could get their money back on returning them.

D. Beverage companies should be responsible for collecting and reusing discarded plastic soda bottles.

2. The returned plastic bottles in New York used to        .

A. be turned into raw rnateria1s

B. be separated from other rubbish

C. have a second-life value

D. end up somewhere underground

3. The key problem in dealing with returned plastic beverage containers is         .

A. how to reduce their recycling costs

B. to sell them at a profitable price

C. how to turn them into useful things

D. to lower the prices for used materials

4. Recycling has become the first choice for the disposal of rubbish because         .

A. recycling causes litt1e pollution

B. other methods are more expensive

C. recycling has great appeal for the jobless

D. local governments find it easy to manage

5. It can be concluded from the passage that          .

A.    recycling is to be recommended both economically and environmentally

B. local governments in the U. S. can expect big profits from recycling

C. rubbish is a potential remedy for the shortage of raw materials

D. landfills will sti1l be widely used for waste disposal

患者，男性，44岁。因"右上腹疼痛半年，加重伴上腹部包块1个月"入院。半年前无明显诱因出现右上腹钝痛，为持续性，时有向右肩背部放射，无恶心、呕吐，自服索米痛片疼痛可暂时缓解。1个月前，患者右上腹痛加重，服止痛药效果不好，自觉右上腹饱满，有包块，伴腹胀、食欲缺乏、恶心。在当地医院就诊，B超显示肝占位性病变。患者发病来，无呕吐、腹泻，偶有发热（体温最高37．8℃），大小便正常，体重下降约5kg，，既往有乙型肝炎病史多年。查体：腹平软，右上腹压痛，肝肋下5cm，表面可扪及3cm×3cm包块，有触痛。

为明确诊断，首先安排下列两项检查为（）

A.肝活检

B.CT

C.AFP

D.肝功能

E.腹部平片

F.胃镜

井架的基本结构主要由井架本体、（）和支座等组成。

A.游车

B.大钩

C.天车

D.泥浆罐

最好利用起重设备将遇难艇筏及人员一起吊上船，这样可以节省遇险人员的体力。（）