According to the passage, modem advertising is "authoritative" because of the way it ______.
A. influences our image of the kind of person we ought to be like
B. interferes with the privacy of home life
C. continually forces us into buying things
D. distracts us no matter where we travel
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Today there has been a change of attitude towards nature. This is shown in ______.
A. the pollution of rivers
B. the overfishing of seas
C. the increase in air pollution e
D. the fostering of forests
Why does the author mention the visible-light microscope in the first paragraph
A. To begin a discussion, of sixteenth-century discoveries.
B. To put the X-ray microscope in a historical perspective.
C. To show how limited its uses are.
D. To explain how it functioned.
From the passage, we can know that ______.
A. 20-25% of earth's 6 billion people can use American English
B. 20-25% of earth' s 6 billion people can use Dr. Johnson' s English
C. 20-25% of earth's 6 billion people can use standard English
D. 20-25% of earth's 6 billion people can use English though not idiomatic
According to the passage, the invention of the visible - light microscope allowed scientists to ______.
A. see viruses directly
B. develop the electron microscope later on
C. understand more about the distribution of the chemical elements
D. discover single-celled plants anal animals they had never seen before
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