174.A blocked oil jet can cause incorrect operation.

A. 　测量硅胶吸收水分的时间是必须的。

B. 　有必要测量硅胶吸收水分的时间。

C. 　测量硅胶吸收水分所需的时间。

A. 　简介中应包含主题的字母索引,用于定位重要的电路。

B. 　字母表应按照主题分类后在简介中列出,用于定位理想电路。

C. 　简介中应包含主题分类的字母索引,以帮助查找所需的电路。

A. 　如果温度值有可能超过允许的限制,就增加功率。

B. 　如果限制值有可能超过允许的限制,就降低功率。

C. 　如果温度值有可能超过允许的限制,就降低功率。

A. 　You can use electric motors to drive fuel and hydraulic pumps or to drive a valve to the commanded position in the fuel,hydraulic or air conditioning system or to move doors and cargo containers

B. 　Electric motors can drive fuel and hydraulic pumps or drive a valve to the commanded position in the fuel,hydraulic or air conditioning system or move mechanical parts like doors and cargo containers to produce mechanical power

C. 　Electric motors produce mechanical power and their main functions are to drive fuel and hydraulic pumps,to drive a valve to the commanded position and to move mechanical parts like doors and cargo containers

A. 　建议使用”告诫”一词,并用适当的10号大写将文

B. 　建议使用”注意”一词,并用适当的10号小写将文

C. 　个建框议中使。用”警告”一词,并用适当的10号大写将文本括在一

A. 　If you get a minimum clearance of 0.1 in.,you can adjust the length of the rod.

B. 　Do not adjust the length of the rod unless you get a minimum clearance of 0.1 in.

C. 　Adjust the length of the rod until the minimum clearance is 0.1 in.

A. 　手册中所示的度量单位必须准确。

B. 　手册中的度量单位必须一致。

C. 　手册中的度量单位必须写明。

A. 　Distances shown are based on weak wind.

B. 　Distances shown are developed with no wind.

C. 　Distances shown are on the basis of gentle wind.

A. 　This material replaces dangerous fumes when it touches hot surface.

B. 　This material releases dangerous fumes when it touches hot surface.

C. 　On contact with hot surfaces,this material produces acrid fumes.

A. 　This chapter of the Pilot＇s Operating Handbook shall contain only those limitations required by regulation or necessary for safety operation of the airplane and approved by the regulatory authority.

B. 　This Section of the Pilot＇s Operating Handbook shall abstain only those limitations required by regulation or necessary for safe operation of the airplane and approved by the regulatory authority.

C. This Section of the Pilot＇s Operating Handbook shall contain only those limitations required by regulation or necessary for safe operation of the airplane and approved by the regulatory authority.