900. 在高压环境下工作时,应遵守安全注意事项。

Obey the safety precautions when you do work with high voltages.

When working with high resistances, you should follow the safety precautions.

The safety precautions are optional in an environment with high voltages.

正确答案：A

设备系统操作理论翻译

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2463. This section gives you the procedures for the disassembly

2462. Find the cause of the incorrect indication

2461. Do the procedure that follows

2460. THE OIL MUST ( ) OUT OF THE VALVE

2459. Measure the depth of the dent with a straight edge and feeler gauges

2458. 左右的客舱温度控制器是可互换的。

2457. On most aircraft, leading edge flaps and slats are located on the front of the wings

2456. Let the paint dry at ambient temperature and a proper relative humidity

2455. 加速停止距离是指将飞机加速到指定速度,并假定在达到该速度的那一刻发动机发生故障,使飞机停止飞行所需的距离。

2454. Complex sentence structure and the large number of meanings and synonyms that many English words have can cause confusion