A、 A maximum distance of 50 feet is required between consumable materials and the work area.
B、 Keep flammable materials at a minimum distance of 50 feet from the work area.
C、 Explosive materials must be kept at least 50 feet away from the work area.
答案：B
A、 A maximum distance of 50 feet is required between consumable materials and the work area.
B、 Keep flammable materials at a minimum distance of 50 feet from the work area.
C、 Explosive materials must be kept at least 50 feet away from the work area.
答案：B
A. Turn the knob clockwise to decrease the intensity of the light.
B. Turn the knob counterclockwise to decrease the intensity of the light.
C. In order to turn the knob clockwise, decrease the intensity of the light.
A. Different meanings occur when words are combined in different ways.
B. When words can link up in different ways, ambiguity occurs.
C. Misunderstanding happens when words are contained in different modes.
A. The tune time for a frequency not in memory is 2 to 4 seconds typical, 7 seconds maximum.
B. The adjust time for a frequency not in memory is 2 to 4 seconds typical, 7 seconds maximum.
C. The tune time for a frequency not in memory is 2 to 4 seconds common, 7 seconds maximum.
A. Stop the engine run-up practice.
B. Stop the engine start procedure.
C. Stop the engine ignition project.
A. Make sure that you can see the oil level through the sight gauge.
B. Make sure that the oil quantity is shown on the oil level indicator.
C. You can read the oil level on the oil level gauge.
A. The toxic conditions are given in Paragraph 2.0.
B. All the test result are given in Paragraph 2.0.
C. All the test conditions are given in Paragraph 2.0.
A. Check all parts with clear defects in accordance with standard industry practices.
B. Check all parts for visible defects in accordance with standard industry practices.
C. Check all parts for serious defects in accordance with standard industry practices.
A. 从油箱排出约2升滑油。
B. 从油箱排出约2升液压油。
C. 从油箱排出约2升燃油。
A. 货舱空气的不流通是个重要的问题。
B. 客舱空气污染是一个重要的问题。
C. 处理机舱空气是个重要的问题。
A. You can use the past form of technical verbs as adjectives.
B. You can use the past tense form of technical verbs as adverbs.
C. You can use the past participle of technical verbs as adjectives.
