材料题
C
The trick in food photography is to show the food looking fresh，so many dishes have stand-ins，just as movie stars do．“When I get my lights and cameras set up，I remove the stand-in and put in the real thing，”explains Ray Webber，who photographs food for magazine advertisements．“Sometimes I have to brush the meat with its juices because it may have dried out a bit．A and when I‘m shooting（拍照）something like tomatoes，I always carry water to spray them with dew just before I shoot．”
Shooting food outdoors has special problems．“I‘m always worrying about flies or worms crawling up a glass，”Webber explains，“my worry is that someday a dog will come up from behind and run off with the food．”Once Webber was shooting a piece of cheese outdoors and needed something to make its color beautiful．Finally he found it：a weed with lovely blue flowers．When the shot appeared，several people were horrified-the weed was deadly nightshade！
（）Just before being photographed，some meats and vegetables are_______．

（）

A.fanned
B.dyed
C.frozen
D.made wet