One of the hobbies the cavemen had was
A. hunting.
B. fighting.
C. drawing.
D. riding.
查看答案
The word "prompted" underlined in Paragraph 3 means______.
A. stimulated
B. attracted
C. annoyed
D. shocked
Which of the following does the writer explain？
A. Neurotoxins.
B. Microscopic organisms.
C. Predators.
D. Fish walks.
It is implied in the passage that______.
A. many scientists had known dinoflagellate before 1988
B. there had been no such organisms before 1988
C. many scientists were in doubt about the nature of the organism in 1988
D. no scientists knew anything about the organism in 1988
Which of the following is true of DHL according to the passage？
A. It cooperates with TNT Skypack.
B. It is showing signs of exhaustion.
C. It might have a leading position in the international courier business.
D. It has an annual growth rate of 5%.
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