41. Which of the following statements is true about animals used in the lab?
(A) America uses only about 1.1 million lab animals per year.
(B) Europe does not use mice and rats as lab animals at all.
(C) Britain does not use as many lab animals as China does.
(D) Japan has limited data on the number of lab animals used each year.

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統計: A(5), B(1), C(1), D(8), E(0) #2737488

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