Stella was disappointed to find her new

女性，28岁。近半年来月经量增多，出现乏力、头晕，查：血红蛋白60g/L，RBC3.4×10¹²/L，WBC9×10⁹／L，血小板189×10⁹/L，外周血红细胞以小细胞为主，中央浅染区扩大。对该患者哪组检查结果最为可能（）

A.血清铁降低，总铁结合力增加，血清铁蛋白减低

B.血清铁降低，总铁结合力增加，血清铁蛋白增加

C.血清铁降低，总铁结合力降低，未饱和铁结合力增加

D.血清铁降低，总铁结合力降低，骨髓含铁血黄素减少

E.血清铁降低，骨髓铁粒幼细胞减少，未饱和铁

18岁男性患者，急性发病，发热6d，伴头痛全身痛、乏力，呕吐1次。查体：神清，前胸及腋下可见针尖大小出血点，肝大肋下1.0cm，血压70/50mmHg，血白细胞12×10⁹/L，中性粒细胞0.8，血小板50×10⁹/L，血红蛋白175g/L，尿蛋白

。治疗应首先采用哪项（）

A．大剂量抗生素抗感染

B．血管活性药物升压

C．扩充血容量

D．肾上腺皮质激素

E．肝素抗凝

下列说法中正确的有：

A．因犯有贪污贿赂、渎职、侵犯财产罪或者破坏社会主义市场经济秩序罪，被判处刑罚的，不能担任基金管理人的基金从业人员
B．对所任职的公司、企业因经营不善破产清算或者因违法被吊销营业执照负有个人责任的董事、监事、厂长、经理及其他高级管理人员，自该公司、企业破产清算终结或者被吊销营业执照之日起已逾三年的，可以担任基金管理人的基金从业人员
C．个人所负债务数额较大，到期未清偿的，可以担任基金管理人的基金从业人员
D．因违法行为被吊销执业证书或者被取消资格的律师可以担任基金管理人的基金从业人员

Lead（铅） deposits, which accumulated（增加） in soil and snow during the 1960's and 70's, were primarily the result of leaded gasoline emissions originating in the United States. In the twenty years that the Clean Air Act has mandated（托管） unleaded gas use in the United States, the lead accumulation world-wide has decreased greatly.

A study published recently in the journal Nature shows that air-borne leaded gas emissions from the United States were the leading contributor to the high concentration of lead in the snow in Greenland. The new study is a result of the continued research led by Dr. Charles Boutron, an expert on the impact of heavy metals on the environment at the National Center for Scientific Research in France. A study by Dr. Boutron published in 1991 showed that lead levels in arctic (北极的) snow were declining（减少）.

In his new study, Dr. Boutron found the ratios of the different forms of lead in the leaded gasoline used in the United States were different from the ratios of European, Asian and Canadian gasoline and thus enabled scientists to differentiate (分区) the lead sources. The dominant lead ratio found in Greenland snow matched that found in gasoline from the United States.

In a study published in the journal Ambio, scientists found that lead levels in soil in the North-eastern United States had decreased markedly since the introduction of unleaded gasoline. Many scientists had believed that the lead would stay in soil and snow for a longer period.

The authors of the Ambio study examined samples of the upper layers of soil taken from the same sites of 30 forest floors in New England, New York and Pennsylvania in 1980 and in 1990. The forest environment processed and redistributed (再分配)the lead faster than the scientists had expected. Scientists say both studies show that certain parts of the ecosystem (生态系统 ) respond rapidly to reductions in atmospheric pollution, but that these findings should not be used as a license to pollute.

1. The study published in the journal Nature indicates that ________.

A. the Clean Air Act has not produced the desired results

B. lead deposits in arctic snow are on the increase

C. lead will stay in soil and snow longer than expected

D. the US is the major source of lead pollution in arctic snow

2. Lead accumulation worldwide decreased significantly after the use of unleaded gas in the US ________.

A. was discouraged               B. was carried out by law

C. was forbidden by law           D. was introduced

3. How did scientists discover the source of lead pollution in Greenland?

A. By analyzing the data published in journals like Nature and Ambio.

B. By observing the lead accumulations in different parts of the arctic area.

C. By studying the chemical elements of soil and snow in Northeastern America.

D. By comparing the chemical compositions of leaded gasoline used in various countries.

4. The authors of the Ambio study have found that ________.

A forests get rid of lead pollution faster than expected

B. lead accumulations in forests are more difficult to deal with

C. lead deposits are widely distributed in the forests of the US

D. the upper layers of soil in forests are easily polluted by lead emissions

5. It can be inferred from the last paragraph that scientists ________.

A. are puzzled by the mystery of forest pollution

B. feel ease by the use of unleaded gasoline

C. still consider lead pollution a problem

D. lack enough means to combat lead pollution

在我国，第一家开发VCD技术的是万燕公司。在万燕财力不雄厚时，花费巨额资金开发和培育市场。而当技术成熟，市场形成时，万燕已如强弩之末；没有充分的实力占据VCD市场，相反，后来者居上。而“微软”在推出新产品“Windows98”时颇为慎重，尽管推迟上市的消息一公布便引起股价下跌，但从长远来看。“微软”的做法达到了“双赢”的结果。不仅使消费者能享受新产品的优点，同时不会使“微软”失去老客户，树立了公司良好的企业形象。

当新产品批量上市时，企业高层管理者应当作以下决策( )。

A．如何包装新产品

B．何时推出新产品

C．何地推出新产品

D．向谁推出新产品

E．如何推出新产品