单项选择题

They couldn't see a （）of hope that they would be saved by a passing ship.

A．grain
B．span
C．slice
D．gleam

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单项选择题
By turning this knob to the right you can（） the sound from the radio.

A．intensify
B．amplify
C．enlarge
D．reinforce
单项选择题
One of the attractive features of the course was the way the practical work had been（）with the theoretical aspects of the subject.

A．embedded
B．embraced
C．integrated
D．synthesized
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