听力原文：W: Hello, nice to meet you, Dr. Griffin. I'm Nancy Wang with China Daily.M: Nice

听力原文：W: Hello, nice to meet you, Dr. Griffin. I'm Nancy Wang with China Daily.

M: Nice to meet you, Miss Wang. I've been to China twice.

W: Really？ When？

M: I visited China first in 1996 and then in 2000. I believe everyone who bas been to China is impressed with the dramatic changes there.

W: Thank you, Dr. Griffin. I heard it is your institute that first cloned an adult mammal—Dolly the sheep in July 1996.

M: That's right. Ever since it was born, Dolly has been the center of attention because its appearance marked the beginning of a new era.

W: It's reported that Dolly gave birth to a lamb in April last year. How are Dolly and the little lamb doing？

M: The lamb is called Bonnie. They are both doing Well. This has proved that Dolly, a cloned animal, is able to breed normally and produce healthy offspring.

W: It is indeed exciting. Will Dolly give birth again？

M: She has already. On March 24 this year, Dolly gave birth to three healthy lambs, two males and one female.

W: les incredible! Dolly must have made world headlines again!

M: This has further demonstrated that cloned animals can lead a normal life.

W: How will human beings benefit from this new progress in science？

M: Dolly and her offspring are part of a research program aimed to produce treatment for a kind of chronic lung disease.

W: I Wish you success, Dr. Griffin!

M: Thank you, Miss Wang.

(20)

A．April this year, 3.

B．March this year, 3.

C．April this year, 4.

D．March this year, 4.