What is defined as and area, excluding sea areas A1 and A2,

【名词&注释】

保护剂(protective agent)、水溶液(aqueous solution)

[单选题]What is defined as and area, excluding sea areas A1 and A2, within the coverage of an INMARSAT geostationary satellite in which continuous alerting is available?

A. Ocean Area Regions AOR-E, AOR-W, POR or IOR
B. Sea Area A3
C. Sea Area A4
D. Coastal and Inland Waters

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学习资料：

[单选题]过氧化氢一般以水溶液来运输，当其水溶液浓度超过30%重量比时需添加()运输。

A. 保护剂
B. 添加剂
C. 抑制剂

[单选题]The pressure differential across a diesel engine lube oil system duplex filter should be checked to ________.

A. determine the need for filter cleaning
B. measure any change in oil viscosity
C. prevent damage to the filter
D. determine the need for batch filtration

[单选题]If anything abnormal be found on the load change of main engine when the ship is entering in shallow waterway, before taking measures the engineer on duty should _______.

A. stop main engine immediately
B. ask the captain and the chief engineer's permission for stopping the engine
C. inquire the bridge for the situation initiatively
D. stop engine and inform bridge

[单选题]下列________种情况下，直航船的行动是正当的。

A. 直航船在到达转向点附近改向
B. 为校对罗经而作航向的改变
C. 到达港口前为了安全进港而减速
D. A和C正确

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