[填空题]______(科学进步和生活条件的改善) have led to the rapid growth of the world population.

[填空题]Business services experience rapid growth as a result of worldwide automation, growing demand and ___________________________.

[单项选择]

Archaeological discoveries have led some scholars to believe that the first Mesopotamian inventors of writing may have been a people the later Babylonians called Subarians. According to tradition, they came from the north and moved into Uruk in the south. By about 3100B.C,They Were apparently subjugated in southern Mesopotamia by the Sumerians, whose name became (5) synonymous with the region immediately north of the Persian Gulf, in the fertile lower valleys of  the Tigris and Euphrates. Here the Sumerians were already well established by the year 3000B.C.They had invented bronze, an alloy that could be cast in molds, out of which they made tools and weapons. They lived in cities, and they had begun to acquire and use capital. Perhaps most  important, the Sumerians adapted writing (probably from the Subarians) into a flexible tool of (10） communication.  Archacologists have known about the Sumerians for over 150 years. Archacologists working at  Nineveh in no
A. Babylonians
B. Subarians
C. Akkadians
D. Sumerians

[单项选择]With rapid growth of world population, mainly in developing countries, the available cultivable land per person has declined steadily since 1960 and will decease by half over the next 50 years. Besides, about 400 million women of childbearing age are iron deficient, leaving their babies exposed to various birth defects. As many as 100 million children suffer from vitamin A deficiency. Tens of millions of people suffer from other major ailments and nutritional deficiencies caused by lack of food.
How can biotech help Biotechnologists have developed genetically modified rice fortified with beta carotene (β-胡萝卜素) and additional iron, and they are working on other kinds of nutritionally improved crops. Biotech can also improve farming productivity in places where crop failures are caused by pests, drought, poor soil and crop viruses, bacteria or fungi. Genetically modified, virus-resistant crops can reduce that damage, as can drought-tolerant seeds in regions where water shortages
A. developing genetically modified or nutritionally improved crops
B. incorporating pest-resistant or virus-resistant genes into seeds of crops
C. improving the ability of seeds to resist water shortages in certain regions
D. identifying genes that helps neutralize aluminum toxicity in crops

[单项选择]Identical twin sisters have led British scientists to a breakthrough in leukemia research that promises more effective therapies with fewer harmful side-effects.
A. administers
B. nurtures
C. inspires
D. ensures

[单项选择]The rapid growth of the world’s population over the past 100 years have led to a great increase in the acreage of land under cultivation.

[单项选择]

 Archaeological discoveries have led some scholars to believe that the first Mesopotamian inventors of writing may have been a people the later Babylonians called Subarians. According to tradition, they came from the north and moved into Uruk in the south. By about 3100B.C,They Were apparently subjugated in southern Mesopotamia by the Sumerians, whose name became (5) synonymous with the region immediately north of the Persian Gulf, in the fertile lower valleys of the Tigris and Euphrates. Here the Sumerians were already well established by the year 3000B.C.They had invented bronze, an alloy that could be cast in molds, out of which they made tools and weapons. They lived in cities, and they had begun to acquire and use capital. Perhaps most important, the Sumerians adapted writing (probably from the Subarians) into a flexible tool of (10） communication. Archacologists have known about the Sumerians for over 150 years. Archacologists working at Nineveh in northern Mesopotamia
A. equivalent to
B. important for
C. respected in
D. familiar with

[单项选择]______ the market' s rapid growth, the start-up venture could surpass the established company within the next 3 years.
A. So as to
B. Furthermore
C. According as
D. Given