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A、Nutrition. B、Ecology. C、Medicine. D、Geology. C
A、Nutrition. B、Ecology. C、Medicine. D、Geology. C
admin
2010-05-26
32
问题
M: Did you watch undersea Discover), last night?
W: No, I missed it. Did you?
M: Yeah, it was pretty good...It was about barnacles.
W: Hmm.
M: You know how they stick themselves to stuff in the ocean ... like rocks or boats?
W: Uh—huh.
M: Well, they do that when they’re young, and then they stay in the same place forever.
W: It figures. Have you ever tried removing one of those things. Last summer I tried to scrape some off a pier...I had to give up after a while. You’d think they wouldn’t be able to stick like that undcrwater.
M: That’s one. reason scientists are-trying to figure out what their glue’s made of. It’s one of the strongest adhesive in nature, and it’s a natural protein, so it probably wouldn’t be harmful like some synthetic glues.
W: Really?
M: Yes. these biomedical researchers were talking about its possible uses. Orthopedists could use it for mending broken bones; or it could be used in dentistry.
W: I wish I’d seen that.
选项
A、Nutrition.
B、Ecology.
C、Medicine.
D、Geology.
答案
C
解析
转载请注明原文地址:https://kaotiyun.com/show/71V7777K
0
大学英语四级
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