单项选择题

All equipment in an aircraft must______.

A．be tested to destruction
B．not be too light in weight
C．work especially well at high temperatures
D．work perfectly within a wide range of temperatures

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单项选择题

According to the passage, which of the following statements is TRUE about the jury

A．The jury sent Jim to prison for a long time.
B．The jury visited Jim in prison.
C．There were eleven people on the jury.
D．There were twelve people on the jury.

单项选择题

The passage suggests that______.

A．it was due to Jim that George was found guilty
B．Jim did not do exactly what George asked him to do
C．Jim asked his colleagues to recommend mercy
D．Jim persuaded the jury to lighten George's punishment