The energy ______ by the chain reaction is transformed into heat.

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问题 The energy ______ by the chain reaction is transformed into heat.

选项 A、entrusted
B、released
C、delivered
D、conveyed

答案B

解析。release意为“释放”；entrust意为“委托，托管”；deliver意为“递送，陈述，释放，发”；convey意为“搬运，传达，转让”。

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专业英语四级

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