same chemical that had been produced by the tree.
Perfumers pay big money for ambergris because it is a fixative, which means it holds a smell
in place on a person's body.
?Cheap perfumes smell good in the first hour or so and then everything is gone,” explains
Bohlmann. “But expensive perfumes are much more stable. Their smell lasts much longer, for
hours or even a day after you apply them.”
The new chemical, made from the tree genes, can be used as a fixative, too. And using
yeast to make it is far cheaper than acquiring ambergris.
Bohlmann admits he never thought he'd get into the perfume business. But now, he says,
producers have been calling to find out how to use his technology in new perfumes.
文章大意:本文是一篇科普说明文。介绍了一种使香水香味持久的物质——龙涎香,因这一物质来自于鲸,所以遭到人们的反对。科学家们发现一些树中的化学物质可以用来取代它,他们利用酵母菌成功制造出了这些化学物质。
16.It can be inferred from the passage that if a perfume contains ambergris, ________.
A.its user probably supports whale hunting
B.its smell will last for about an hour
C.there will be a whale symbol on the bottle
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