更多"The AGE represents"的相关试题:
[填空题] Age Structures in Mexico and Sweden
Age structure refers to the percentage of the population in different age
(1) ______Mexico’s age structure is quite different from Sweden’s in (1) ______
that the former is like a (2) ______with a wider base. In Sweden, the age (2) ______
structure is shaped like a rectangle, which results from a(n) (3) ______ (3) ______
birth rate and low death rate in early and middle age. In Mexico, the
population is expanding rapidly. In Sweden, the population is stable in size
with a(n) (4) ______distribution. (4) ______
The Effects of Different Age Structures..
—Age structures affects population growth:
a) A country with a larger percentage of people at the bottom of the
pyramid will have a (5) ______population growth rate. (5) ______
b) a larger proportion of women of (6) ______age results in a faster (6) ______
population growth.
[简答题]The miracle silicon chip represents a development in the technology of mankind that over the past few years has acquired the force and significance associated with the development of hand tools or the discovery of the steam engine. Just as the Industrial Revolution took over an immense range of tasks from men’s muscles and enormously expanded productivity, so the microcomputer is rapidly assuming huge burdens of tedious work from the human brain and thereby expanding the mind’s capacities in ways that man has only begun to grasp. With the chip, remarkable achievements of memory and execution become possible in everything from farms to banks to corporate offices.
[单项选择]The Victorian Age was largely an age of prose, eminently represented by Charles Dickens and（）
A. John Keats.
B. Francis Bacon.
C. William Makepeace Thackeray.
D. George Gordon Byron.
[填空题]The modern age is an age of electricity. People are so (47) to electric lights, radio, televisions, and telephones that it is hard to imagine what life would be like (48) them. When there is a power failure, people search (49) with the hands in darkness or candlelight, cars hesitate in the street (50) there are no traffic lights to guide them, and food (51) in silent refrigerators.
Yet people began to understand how electricity works only a little more than two centuries ago. Nature has (52) been experimenting in this field for millions of years. Scientists are (53) more and more that the living world may hold many interesting secrets of electricity that could benefit humanity.
All living cells send out (54) pulses of electricity. In fact, they are so small that sensitive (55) are needed to record them. As the heart beats, it sends out pulses of record; they form an electrocardiogram, which
