S1: Let me take his temperature. S2: Does he have to have an operation? Q: What will the first speaker do?
单选题
S1: I'd like to check ESB first, Second Engineer and ETO. S2: What does ESB mean, PSCO? S1: It stands for emergency switchboard. S2: Understood. Q: What did the PSCO intend to check?
单选题
When the diode is broken, you should replace it 二极管坏了你应该更换它。
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