单项选择题

According to the passage, the Speech Machine’s system was developed by ______.

A．the telephone office
B．a British company
C．the Defense Research Agency
D．the military service
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单项选择题
When one begin another paragraph with Friday. Train XY132 , he or she should dictate it as ______.
A．New paragraph. "Friday Full Stop Train XY132"
B．New paragraph. "Friday Train XY132"
C．New paragraph. "Friday Stop Train Stop XY Stop 132"
D．New paragraph. "Friday Dot Train XY132"
单项选择题
From the passage, we know that the advantages of the system might be ______.
A．no limitation concerning noise, quick recognition of voices
B．quick recognition of voices, offering all-day service
C．offering all-day service, quick recognition of voices
D．offering a clock round service in a high-noise environments quickly
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