Traditional recruiting providers didn't make strategic progress because
A. they adopted new ways to help companies.
B. the solutions focused on project.
C. they didn't find customers.
D. they had no access to best practices and innovative techniques.
查看答案
The phrase set up in paragraph 6 is closest in meaning to
A. forbid
B. establish
C. increase
D. conceal
Which sentence below best expresses the essential information in the highlighted sentence
Any species of life can be studied in population ecology．
B. Population ecologists care about the future of humanity．
C. The growth of the human population is a major concern．
D. Population ecology does not consider humans worthy of study．
The word one in paragraph 2 refers to
A. clay tablet
B. scroll
C. book
D. printing press
Why does the author mention immigration and emigration in paragraph 8？
A. To identify factors affecting population dispersion
B. To give examples of territorial behavior. in animals
C. To show that populations balance themselves over time
D. To explain why animal populations are uniformly dispersed
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