单项选择题

According to the passage, inspectors paid an unexpected visit to the duty fireroom just______.

A．before the moon rose
B．after the moon set
C．after the sun set
D．before the sun rose
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单项选择题
Grocery store price lists are updated by______.
A．a scanner
B．a telephone hookup
C．an adding machine
D．an employee
单项选择题
According to the passage, which of the following statements is TRUE
A．That high-tech cash register is anything but an electric eye.
B．The grocery stores update the price list every other day.
C．There is no machine with intelligence today.
D．There are four biggest lies in America.
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