单项选择题

Design and engineering are separate departments at Dyson.

A．right
B．wrong
C．Doesn't say
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单项选择题
Some of the world's leading museums show Dyson vacuums.
A．right
B．wrong
C．Doesn't say
单项选择题
People do not communicate by memo at Dyson.
A．right
B．wrong
C．Doesn't say
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