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【单选题】
A vessel is entering port A for the first time and has a Pilot conning the vessel. The Master is unsure that the Pilot is taking sufficient action to prevent a collision. What should the Master do? ______.
A.
Nothing; The Pilot is required by law and is solely responsible for the safety of the vessel
B.
State his concerns to the Pilot but do not interfere with the handling of the vessel
C.
Direct the Pilot to stop the vessel and anchor if necessary until the situation clears
D.
Recommend an alternative action and if not followed relieve the Pilot
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【单选题】When you are looking for 'videos of humpback whales in the North Atlantic,' which of the following search strings can give you the most precise collection of pages according to the passage?
A.
videos of humpback whales in the North Atlantic
B.
humpback whales + videos + 'North Atlantic'
C.
humpback whales + videos + 'North Atlantic' -Pacific
D.
humpback whales + videos
【单选题】实验室内因用电不符合规定引起导线及电器着火,此时应迅速( )。
A.
切断电源后,用任意一种灭火器灭火
B.
切断电源后,用泡沫灭火器灭火
C.
切断电源后,用水灭火
D.
切断电源后,用 CO2 灭火器灭火
【简答题】大齿轮有100个齿,每分钟转25转;小齿轮有25个齿,每分钟转100转。 (1)写出大齿轮和小齿轮齿数的比,并求出比值; (2)写出大齿轮和小齿轮每分钟转数的比,并求出比值; (3)比较上面两题的结果,说说你的发现。
【单选题】实验室内因用电不符合规定引起导线及电器着火,此时应迅速( )。
A.
切断电源后,并用任意一种灭火器灭火
B.
切断电源后,用泡沫灭火器灭火
C.
切断电源后,用水灭火
D.
切断电源后,用 CO2 灭火器灭火
【简答题】一台机器上有大小两个齿轮,大齿轮有100个齿,每分钟25转;小齿轮有40个齿,每分钟120转.根据所给条件,你可以写出哪些比?
【多选题】制定推广费用采用销售百分比法时,其优点表现在( )。
A.
灵活性较小,以便于控制
B.
考虑到推广成本、售价与企业利间的关系
C.
根据企业的负担能力而定,就财务而言合理可行
D.
普遍采纳此法可以使竞争趋于稳定
E.
既有经验基础,又有理论作为支撑
【简答题】. Books, software, and videos, no matter what you are looking for, if you turn on a computer and log (登录) on the Internet, you are sure to find something. E-books are all over the Internet; some are f...
【单选题】实验室内因用电不符合规定引起导线及电器着火,此时应迅速( )。
A.
切断电源后,用泡沫灭火器灭火
B.
切断电源后,用CO2灭火器灭火
C.
切断电源后,用水灭火
D.
切断电源后,用任意一种灭火器灭火
【单选题】实验室内因用电不符合规定引起导线及电器着火,此时应迅速:
A.
切断电源后,用CO2灭火器灭火
B.
切断电源后,用任意一种灭火器灭火
C.
切断电源后,用泡沫灭火器灭火
D.
切断电源后,用水灭火
【简答题】Translate the following sentences into English 5) 问题是我们应该选择哪条路线。 _______________________________________
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