当接近正在运行的发动机时，必须使用听力防护设备。
A: You must use ear protection when you are near an engine that is in operation.
B: You are entailed using ear protection when you are near an engine that is in operation.
C: It's essential to use ear protection when you are near an engine that is in operation.
D: You have to use ear protection when you are near an engine that is in operation.
A: You must use ear protection when you are near an engine that is in operation.
B: You are entailed using ear protection when you are near an engine that is in operation.
C: It's essential to use ear protection when you are near an engine that is in operation.
D: You have to use ear protection when you are near an engine that is in operation.
A
举一反三
- 当使用应急泵时，记录使用时间。 A: When you use the emergency pump, record the time of operation. B: Anytime you use the emergency pump, record the usage. C: Once you use the emergency pump, record the usage. D: Upon use of emergency pump, record the usage.
- ________ oil or butter when you cook it ? A: Do you use B: Did you use C: Were you using D: Have you used
- When listening for a speaker's evidence, you should keep an ear out for its
- You need to have an operation.
- You can consult the interesting sights near the hotel when you check in. A: 正确 B: 错误
内容
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When you start a negotiation，you'd better set your initial offer near your final objective.
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The software you use to access the internet is ________. A: browser B: search engine
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At 0230 on 13 August，you are at mile 610.5 AHP when you see about a mile ahead lights on the water near the left bank. What might you see when you come abreast of these lights? （）
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You should open the doors when you use it.
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Did you ____ have a part-time job when you were at college? A: used to B: use C: use to D: used