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【单选题】
在燃油供油单元FCM的自动控制系统中,燃油黏度控制系统的组成主要包括____。
A.
黏度传感器
B.
压力变送器
C.
显示器
D.
燃油泵
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参考答案:
举一反三
【单选题】____ are published for the correction of Admiralty Charts.
A.
Admiralty Sailing Direction
B.
List of Signals
C.
Mariner’s Handbook
D.
Admiralty Notice to Mariners
【单选题】When you read the Sailing Directions,you should notice that it is one of the series of publications produced by which should be consulted by users of Admiralty charts.
A.
IHO
B.
UK Hydrographic office
C.
IMO
D.
international association of CS
【单选题】【单选】Which is not the reason that the information on Admiralty charts or in other publication is not always accurate?
A.
the information may not always be complete.
B.
the information may not always up-to-date.
C.
the information may not be always positioned to modern surveying standards
D.
the information is always corrected by Admiralty Notice to Mariners
【单选题】电源不变时,三相异步电动机旋转磁场的转速由 决定。
A.
绕组极数
B.
绕组参数
C.
负载转矩
D.
负载性质
【单选题】中国无产阶级在新民主主义革命中最可靠的同盟军是
A.
民族资产阶级
B.
贫农
C.
小资产阶级
D.
农民阶级
【单选题】与大气污染关系最密切的逆温是( )。
A.
辐射逆温
B.
下沉逆温
C.
平流逆温
D.
锋面逆温
【单选题】When you read the sailing directions, you should notice that this is one of a series of publications produced by the()which should be consulted by users of Admiralty Charts.
A.
UK Hydrographic Office
B.
IMO
C.
International Hydrographic Organization
D.
International Association of Classification society
【单选题】Temporary and preliminary notice are placed at the end of ___ of Admiralty Notices to Mariners.
A.
Section I
B.
Section II
C.
Section III
D.
Section IV
【单选题】When you read the sailing direction, you should notice that this is one of a series of publications produced by the which should be consulted by the users of admiralty charts.
A.
UK Hydrographic Office
B.
IMO
C.
IHO
D.
International association of classification societies
【简答题】三组异步电动机旋转磁场的转速由什么决定?对于工频下的 2 、 4 、 6 、 8 、 10 极的三相异步电动机的同步转速为多少?
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