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2452.此工具是可选的。

A、 This tool is mandatory.

B、 This tool is optional.

C、 This tool is necessary.

答案:B

英语答案英语答案
1305.The Check List may be followed by additionalinformation to provide pilots with a better understanding of the reasons for actions in the Check List.
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1073.All range distances shall be expressed in nautical miles.
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2271.In Wiring Diagram Manual,an alphabetical index by subject is to be included in the Introduction,as an assistance in locating the desired circuit.The index should show the chapter and subchapter in which a circuit of the system appears.
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1088.Disconnect the connection upstream of the valve.
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1171.Lock the pulley with the rigging pin.
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1352.This can cause a deterioration of the mechanical properties of the assembly.
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2953.将所有装有不同金属螺套或有较深盲孔的金属零件在烤箱中干燥至少一小时,烤箱温度为 225 到 275 华氏度(107 to 135°C)。
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523.Two resolvers measure the position of the fuel metering valve.
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1978.In the description of the airplane's Landing Gear,retraction mechanism,if provided,shall be described.
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1028.De-energize the system.
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2452.此工具是可选的。

A、 This tool is mandatory.

B、 This tool is optional.

C、 This tool is necessary.

答案:B

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1305.The Check List may be followed by additionalinformation to provide pilots with a better understanding of the reasons for actions in the Check List.

A. 检查单可能需要增加额外的信息,以便飞行员更好地理解检查单中的措施。

B. 检查单后面可能还有附加的信息,以便飞行员更好地理解怎样实施检查单。

C. 检查单后面可能还有附加的信息,以便飞行员更好地理解检查单中措施的原因。

https://www.shititong.cn/cha-kan/shiti/00059993-c619-61df-c057-47291d003a00.html
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1073.All range distances shall be expressed in nautical miles.

A. The unit of all range distances shall be nautical mile.

B. We measure all range distances in accurate miles.

C. The range of distances shall be calculated in knots.

https://www.shititong.cn/cha-kan/shiti/00059993-c617-41c3-c057-47291d003a00.html
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2271.In Wiring Diagram Manual,an alphabetical index by subject is to be included in the Introduction,as an assistance in locating the desired circuit.The index should show the chapter and subchapter in which a circuit of the system appears.

A. 在《线路图手册》中,引言部分应包括每个主题下的字母索引,以帮助查找所需电路。该索引应显示系统电路所在的章节和子章节。

B. 在《线路图手册》中,引言部分应包括以主题的首字母顺序编写的索引,以帮助查找所需电路。该索引应显示系统电路所在的章节和子章节。

C. 在《线路图手册》中,引言部分应包括每个主题下的字母索引,以帮助查找所需电路。该索引应显示章节和子章节中的系统。

D. B.在《线路图手册》中,引言部分应包括以主题的首字母顺序编写的索引,以帮助查找所需电路。该索引应显示系统电路所在的章节和子章节。

E. C.在《线路图手册》中,引言部分应包括每个主题下的字母索引,以帮助查找所需电路。该索引应显示章节和子章节中的系统。

https://www.shititong.cn/cha-kan/shiti/00059993-c621-68bd-c057-47291d003a00.html
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1088.Disconnect the connection upstream of the valve.

A. Detach the connection of the valve in the direction opposite to the flow.

B. Detach the connection of the upstream valve.

C. Detach the connection of the valve in the direction identical to the flow.

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1171.Lock the pulley with the rigging pin.

A. Use the rigging pin to lock the pulley.

B. Use the pulley to lock the rigging pin.

C. The rigging pin should be locked by the pulley.

https://www.shititong.cn/cha-kan/shiti/00059993-c618-1217-c057-47291d003a00.html
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1352.This can cause a deterioration of the mechanical properties of the assembly.

A. 这会导致组件的机械性能的恶化。

B. 这会导致组件的机械部件的变形。

C. 这会导致组件的机械装置碰撞。

https://www.shititong.cn/cha-kan/shiti/00059993-c619-c659-c057-47291d003a00.html
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2953.将所有装有不同金属螺套或有较深盲孔的金属零件在烤箱中干燥至少一小时,烤箱温度为 225 到 275 华氏度(107 to 135°C)。

A. Dry all metal parts that have different metal inserts or deep blind holes in an oven at 225 to 275°F (107 to 135°C) for a minimum of one hour.

B. Put all different metal inserts or deep blind holes metal parts in an oven at 225 to 275°F (107 to 135°C) for a maximum of one hour.

C. All metal parts that have different metal inserts or deep blind holes are dry in an oven of 225 to 275°F (107 to 135°C) for a minimum of one hour.

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523.Two resolvers measure the position of the fuel metering valve.

A. 2 个解算器测量燃油计量活门的位置。

B. 燃油计量活门测量 2 个分析仪的位置。

C. 2 个分析仪定位燃油计量活门的位置。

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1978.In the description of the airplane's Landing Gear,retraction mechanism,if provided,shall be described.

A. 描述飞机起落架时,应描述收回方法(如有)。

B. 描述飞机起落架时,应描述撤回机构(如有)。

C. 描述飞机起落架时,应描述起落架收上机制(如有)。

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1028.De-energize the system.

A. Provide the pneumatic power for the system.

B. Supply the electrical power for the system.

C. Remove the electrical power of the system.

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