题目内容
完全未使用的设备技术寿命也可能为0
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设备的自然寿命主要取决于无形磨损的速度。
设备的技术寿命一般短于自然寿命。
A: Excuse me. Could you tell me the way to the subway?B: Subway? Oh, you mean the metro. Go down this street and turnright at the _____________(红绿灯).A: Right at the traffic lights?B: Yes. You'll see the ________(标志), a large M, when you get there.A: Thanks a lot.
A: Good morning. Can you tell me where the Sales Manager's office is?B: Well, the Sales Manager's office is on the fifth floor, Room 512.A: Where is the _________(电梯), please?B: Over there. Take the lift to the fifth floor, and then turn left. It is the second room on the left.
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