Centuries ago, man discovered that
removing moisture from food helps to preserve it, and that the easiest way to do
this is to expose the food to sun and wind. In this way the North American
Indians produce pemmican, the Scandinavians make stockfish and the Arabs dry
dates and apricot leather. All foods contain water-cabbage and
other leaf vegetables contain as much as 93% water, potatoes and other root
vegetables 80%, lean meat 75% and fish anything from 80% to 60% depending on how
fatty it is. If this water is removed, the activity of the bacteria that cause
food to deteriorate is checked. Fruit is sun-dried in Asia
Minor, Greece, Spain and other Mediterranean countries, and also in California,
South Africa and Australia. The methods used vary, but in general, the fruit is
spread out on trays in drying yards in the hot sun. In A. they arc quick to prepare B. they weigh less than the same canned foods C. they are much better than the frozen foods D. they can be replaced by moisture with boiling water
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Centuries ago, man"的相关试题:
[单项选择] Text 2
Centuries ago, man discovered that
removing moisture from food helps to preserve it, and that the easiest way to do
this is to expose the food to sun and wind. In this way the North American
Indians produce pemmican, the Scandinavians make stockfish and the Arabs dry
dates and apricot leather. All foods contain water-cabbage and
other leaf vegetables contain as much as 93% water, potatoes and other root
vegetables 80%, lean meat 75% and fish anything from 80% to 60% depending on how
fatty it is. If this water is removed, the activity of the bacteria that cause
food to deteriorate is checked. Fruit is sun-dried in Asia
Minor, Greece, Spain and other Mediterranean countries, and also in California,
South Africa and Australia. The methods used vary, but in general, the fruit is
spread out on trays in drying yards in the hot sun. In A. 75% B. 93% C. 23% D. 85%
[单项选择]Centuries ago, man discovered that removing moisture from food helps to preserve it, and that the easiest way to do this is to expose the food to sun and wind. In this way the North American Indians produce pemmican, the Scandinavians make stockfish and the Arabs dry dates and apricot leather. All foods contain water-cabbage and other leaf vegetables contain as much as 93% water, potatoes and other root vegetables 80%, lean meat 75% and fish anything from 80% to 60% depending on how fatty it is. If this water is removed, the activity of the bacteria that cause food to deteriorate is checked. Fruit is sun-dried in Asia Minor, Greece, Spain and other Mediterranean countries, and also in California, South Africa and Australia. The methods used vary, but in general, the fruit is spread out on trays in drying yards in the hot sun. In order to prevent darkening, pears, peaches and apricots are exposed to the fumes of burning sulfur before drying. Plums, for making prunes, and certa A. 75% B. 93% C. 23% D. 85%
[单项选择]
Dried food
Centuries ago, man discovered that removing moisture from food helps to preserve it, and that tile easiest way to do this is to expose the food to sun and wind. In this way the North American indians produce pemmican (dried meat ground into powder and made into cakes), the Scandinavians make stockfish and the Arabs dried dates and ’apricot leather. ’
All foods contain water—cabbage and other leaf vegetables contain as much as 93% water, potatoes and other root vegetables 80%, lean meat 75% and fish anything from 80% to 60% depending on how fatty it is. If this water is removed, the activity of the bacteria which cause food to go bad is checked.
Fruit is sun-dried in Asia Minor, Greece, Spain and other Mediterranean countries, anti also in California, South Africa anti Australia. The methods used vary, but in general, the fruit is spread out on trays in drying yards in the hot sun. In order to percent darkening, pears, pe A. cabbage and other leaf vegetables B. potatoes and root vegetables C. lean meat D. very fatty fish
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