儿童成长最重要的心理标志是什么？（）A、自主意识 B、自主能力 C、自主精神 D、自主活动

日本和德国科学家分别在美国《科学》杂志和英国《自然》杂志上报道说，他们发现了 ______这种生物化学酶在把氧气和食物转变成维持生命所必需的能量过程中发挥着关键作用。这种生化酶名为“细胞色素氧化酶”。

在他们各自的研究中，日本的科学家小组是借助聚焦于牛心脏组织的复杂三维立体 X光成像仪器获得其形状图像的，而德。国科学家小组则是从一种土壤细菌中制取的酶蛋白晶体中分离得到其结构的。“细胞色素氧化酶”存在于小到微生物、大到大象的所有动物的所有细胞中。在人体内，氧气进入肺叶后，被红血球吸收，然后输送到每一个细胞内，由“细胞色素氧化酶”与来自食物的氧分组合，通过化学反应产生二氧化碳、水和能量。最新研究显示了铁原子、铜原子以及其他元素在“细胞色素氧化酶”中的排列分布状况，①可帮助科学家发现细胞内某些新陈代谢过程发生差错的原因，②找到治疗过早衰老、神经系统功能衰退，③肥胖等相应疾病的方法和药物。科学家认为，以生命能量逐步丧失为特征的衰老的部分原因可能是由于“细胞色素氧化酶”作用效率下降的结果；而以能量积聚过多，脂肪细胞数量以及体重超出正常水平为特征的肥胖则可能是“细胞色素氧化酶”作用效率过高的结果。

第一自然段横线上，应填入的一项是（）。

A．一种重要的生物化学的基本结构

B．一种重要的生物化学酶

C．一种名为“细胞色素氧化酶”的基本结构

D．一种名为“细胞色素氧化酶”

For good or ill, globalization has become the economic buzz-word of the 1990s. National economies are undoubtedly becoming steadily more integrated as cross-border flows of trade, investment and financial capital increase. Consumers are buying more foreign goods, a growing number of firms now operate across national borders, and savers are investing more than ever before in far-flung places.

Whether all of this is for good or ill is a topic of heated debate. One positive view is that globalization is an unmixed blessing, with the potential to boost productivity and living standards everywhere. This is because a globally integrated economy can lead to a better division of labor between countries, allowing low-wage countries to specialize in labor-intensive tasks while highwage countries use workers in more productive ways. It will allow firms to exploit bigger economies of scale. And with globalization, capital can be shifted to whatever country offers the most productive investment opportunities, not trapped at home financing projects with poor returns.

Critics of globalization take a gloomier view. They predict that increased competition from low-wage developing countries will destroy jobs and push down wages in today’s rich economies. There will be a race to the bottom as countries reduce wages, taxes, welfare benefits and environmental controls to make themselves more competitive. Pressure to compete will erode the ability of governments to set their own economic policies. The critic also worry about the increased power of financial markets to cause economic havoc, as in the European currency crises of 1992 and 1993, Mexico in 1994～1995 and South-East Asia in 1997.

National economies are becoming more integrated as a result of ().

A. increasing flows of cross-border trade, investment and financial capital

B. more and more consumers going abroad to buy goods

C. many companies establishing new businesses

D. savers investing more in developed areas than in developing countries

在中国古代“家国一体”的社会中，忠孝观念源远流长，其源头是（）

A.宗法制

B.郡县制

C.君主专制

D.中央集权制

质量目标通常是依据企业的（）来制订。

A、质量手册

B、顾客对企业的质量要求

C、质量方针

D、质量方案

栓剂的一般质量要求不包括（）

A.药物与基质应混合均匀，栓剂外形应完整光滑

B.使用时应事先进行灭菌

C.应无刺激性，能融化、软化或溶解

D.应有适宜的硬度

E.应能与分泌液混合，逐步释放出药物