A、 Because of the risk of contamination, you must do this task in a very clean environment.
B、 To prevent environmental pollution, this task must be done in a very clean area.
C、 In order to prevent contamination, the task you must do is to find a very clean environment.
答案：A
A、 Because of the risk of contamination, you must do this task in a very clean environment.
B、 To prevent environmental pollution, this task must be done in a very clean area.
C、 In order to prevent contamination, the task you must do is to find a very clean environment.
答案：A
A. NOTE: This tryout is to make sure that the flap position indicating system is in a zero energy state.
B. NOTE: This test is to make sure that the flap position indicating system is in a zero condition.
C. CAUTION: This test is to make sure that the flap position indicating system is in a zero condition.
A. 不要安装精度超过0.02 mm的垫片。
B. 不要安装厚度超过0.02 mm的填隙片。
C. 不要安装高度超过0.02 mm的衬垫。
A. Use a solution of foam and water to clean.
B. Clean with bleach and water.
C. Clean with a solution of soap and water.
A. 给轮胎放气，释放所有氮气。
B. 将轮胎放平，释放轮胎内的氮气。
C. 让轮胎放气并充填氮气。
A. Open the isolating valves.
B. Open the check valves.
C. Open the bypass valves.
A. It is necessary to replace the fitter.
B. It is mandatory to replace the filter.
C. It is prohibited to replace the filler.
A. You can reassemble the horizontal stabilizer.
B. You can trim the horizontal stabilizer to the right angle.
C. You can adjust the incidence of the horizontal stabilizer.
A. Ensure that the label adheres tightly to the surface and that no bubbles are present.
B. Verify the full attachment of the label to the surface and accept the presence of bubbles.
C. Make sure the label is partially attached to the surface, ensuring there are no bubbles present.
A. 英语是科学、工艺和人际关系的交流语言。
B. 英语是科学、技术和相关人员的互通语言。
C. 英语是科学、技术和人际关系的国际语言。
A. You can adjust the volume control.
B. You can adjust the value control.
C. You can override the voice control.
