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外语
Who missed the TV special?
Who missed the TV special?
admin
2012-08-21
50
问题
Who missed the TV special?
M:Did you watch the TV special about barnacles last night?
W: No,I missed it. What did you learn about them?
M: That they glue themselves to rocks in the ocean,shortly after birth. They also stay in the same place forever.
W: Right,have you ever tried removing one of these things? It would be easier to chip the rock away than to get the barnacles off.
M:Exactly,and that’s why scientists are trying to figure out what the barnacles glue is made of. It’s considered one of the strongest adhesives in nature.
W: And it would have the advantage of being able to work on wet surfaces too.
M:Precisely,and because it’s natural protein,it probably wouldn’t be harmful to people like so many synthetic glues in use today.
W: Think of all the ways doctors and dentists could use such a glue,mending broken bones, washing false teeth.
M:There could be countless uses. Scientists hope to learn soon exactly how the glue is made, so that people can make use of it.
选项
A、It can work on wet surfaces.
B、It can be used forever.
C、It can be made into a kind of sugar.
答案
A
解析
转载请注明原文地址:https://kaotiyun.com/show/Tfwd777K
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