单项选择题

The energy （） by the chain reaction is transformed into heat.

A．transferred
B．released
C．delivered
D．conveyed

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单项选择题
Investigators agreed that passengers on the airliner （） at the very moment of the crash.

A．should have died
B．must be dying
C．must have died
D．ought to die
单项选择题
I would never have （） a court of law if I hadn't been so desperate.

A．sought for
B．accounted for
C．turned up
D．resorted to
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