听力原文:M: We'll continue with the work of investigation. Laura, an identical twin, has a
W: Of course we are.
M: Interesting! You said 'of course'. Don't you think there are quite a few sisters are in close?
W: Sarah and I aren't just sisters, we’re identical twins.
M: I take your point. How identical are you in fact?
W: Both blond, with brown eyes, same height, same weight, same size, even shoes.
M: As you're the same size, have you always dressed alike?
W: Oh, yes. I've totally started when we were babies, man-made feature of twins. And then we got it in many habits to everything.
M: And you've never minded having a double identity? I mean another person exactly like you?
W: Sarah isn't exactly like me. We may look identical, but I remember our boyfriends couldn't tell us apart.
M: Didn't that cause problems?
W: For them perhaps, not for us. We couldn't stop laughing.
M: I think you said you and Sarah weren't exactly alike. Just what do you mean by that?
W: Sarah has a well-fed happy husband and four healthy children. When she was washing up, I was learning to type; when she was knitting, I was writing articles for the school newspaper. When she was having her second child, I was in Panama, doing my first job for United Information Services. See what I mean?
M: And haven't you got a healthy husband and happy children?
W: You must be joking. There's never been the time...or the inclination.
M: Laura, you've made some very interesting points. I gather that you don't feel that behavior. is purely genetic...that there might be some element of environment or choice or even perhaps...
W: Shall I conclude? Sarah and I are identical twins, in appearance, that is, but it's a fact that life has presented us with different opportunities, so we've led very different lives.
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A.Same height.
B.Same friends.
C.Same number of children.
D.Same university.