单项选择题

Who benefited the least from fridges according to the author（）

A．Inventors.
B．Consumers.
C．Manufacturers.
D．Traveling salesmen.

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单项选择题

The statement “In my fridgeless Fifties childhood, I was fed well and healthily.”(Line 1, Para. 2) suggests that（）

A．the author was well-fed and healthy even without a fridge in his fifties
B．the author was not accustomed to using fridges even in his fifties
C．there was no fridge in the author' s home in the 1950s
D．the fridge was in its early stage of development in the 1950s

单项选择题

Which of the following phrases in the fifth paragraph indicates the fridge’ s negative effect on the environment（）

A．“Hum away continuously”.
B．“Climatically almost unnecessary”.
C．Artificially-cooled space”.
D．“with mild temperatures”.