What does the author imply regarding large desert-adapted animals？
A. They have good appetite at night.
B. They never lose body water.
C. They seldom feel thirsty.
D. They travel long distances looking for food.
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The phrase "to pay off" in paragraph eight can be replaced by ______.
A. to be worthwhile
B. to make profit
C. to pay up
D. to succeed
Snow-blindness, according to the passage, can be overcome by ______.
A. crossing a solid white territory
B. producing more and more eye fluid
C. continuously searching for something to look at
D. providing something for the eyes to focus on
Free Parks are cutting back on staff because ______.
A. they are not charging for tickets
B. only a few staff members are needed for park operations
C. the park operators are short of cash and they have to operate in an economical way
D. Both A and
The author lists the following as adaptation of large desert animals except ______.
A. changing body temperature
B. drinking water quickly
C. not losing appetite even when very thirsty
D. being active at night
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