A、 Be careful when you put your hand onto printed circuit boards.
B、 Be careful when you get close to printed circuit boards.
C、 Be careful when you remove printed circuit boards.
答案:A
A、 Be careful when you put your hand onto printed circuit boards.
B、 Be careful when you get close to printed circuit boards.
C、 Be careful when you remove printed circuit boards.
答案:A
A. 燃油配送装置指系统中将燃油输送给发动机和从发动机输回燃油的部分。
B. 燃油配送装置指系统中将燃油输送给发动机的部分。
C. 滑油分配系统指系统中将滑油输送给发动机和从发动机回油的部分。
A. CRES causes magnesium,aluminum,or cadmium to corrode when it touches these metals.
B. Stainless steel corrodes once touching magnesium,aluminum,or chromium metals.
C. Magnesium,aluminum,or chromium metals shall be protected from the corrosion caused by CRES.
A. 在需要折叠的页面上,折叠时不允许页码可见。
B. 在需要折叠的页面上,以允许页码可见的方式折叠。
C. 在需要折叠的页面上,以这样的态度来折叠,并保证页码可变。
A. The damper prevents abnormal movement of the control.
B. The control is protected from unusual movements by the damper.
C. The damper prevents sudden movement of the control.
A. Do the tightening procedure.
B. Do the loosening procedure.
C. Do the strengthening procedure.
A. 该限制应在飞机处于起落架上或提升装置上时使用。
B. 如果飞机在起落架上或被顶起,请查阅此文件。
C. 该限制适用于飞机在起落架上或千斤顶上。
A. 在”停放“这节中包含一些预防措施和限制, 例如在起落架减震支柱内的压力和机轮的转动方面。
B. 在”停放“这节中包含一些预防措施和限制, 例如在起落架减震支柱内的压力和机轮的转速方面。
C. 在”停放“这节中包含一些预防措施和限制, 例如在起落架减震支柱内的油压和机轮的转速方面。
D. C.在”停放“这节中包含一些预防措施和限制, 例如在起落架减震支柱内的油压和机轮的转速方面。
A. 在这种结构中,液压流过这个活门。
B. 在这种构型中,液压旁通这个活门。
C. 在这种型号中,水流旁通这个活门。
A. The engine and all additional facilities use indifferent lubricants.
B. The engine uses multiple types of lubricants for different purposes.
C. The engine and all auxiliary equipment use the same lubricant.
A. If as many as 50% of the holes are contaminated,you should clean the display units behinds the holes.
B. The holes on the bottom of the display unit should be cleaned once over 50% of them are clogged due to contamination.
C. If contamination causes a blockage of more than 50 percent of the holes,then clean the holes on the rear of the display units.