The phrase "product of greater value" underlined in Paragraph 4 refers to______.
A. lawsuit plaintiffs
B. theoretical damages
C. light cigarettes
D. health advantages
查看答案
All the following names are used to describe the organism EXCEPT______.
A. dinoflagellate
B. Pfiesteria piscimorte
C. killer algae
D. a science fiction
Which of the following questions is answered according to the information given in the passage？
A. What is the toxin used by the fish killer？
B. Who first discovered the organism？
C. How does the fish killer paralyze fish？
D. How many fishes can the organism kill each day？
As mentioned in Paragraph 3, tobacco companies in the U. S. began marketing______ in the 1970s.
A. high-class cigarettes
B. low-class cigarettes
C. light cigarettes
D. low tar brands
听力原文：What's the date today？
(12)
A. It's Thursday.
B. It's April 15.
C. In the evening today.
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