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【单选题】
Which of the following is false? .A.
A company should develop a SMS and implement it
B.
A company implementing a SMS properly may obtain a DOC
C.
Once a company obtains its DOC, each vessel of this company will obtain a SMC
D.
DOC is valid for 60 months unless “major non-conformity” is found
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举一反三
【简答题】Between whom do the different opinions exist? The different opinions exist between ______.
【单选题】对于饱和湿空气，湿空气的干球温度t、湿球温度tw和露点温度td的关系为（ ）。
A.
t˃tw˃ td
B.
t˃tw= td
C.
t=tw˃ td
D.
t=tw= td
【简答题】A．It may exist in the neighborhood of big stars. B．It may exist in the neighborhood of a galaxy. C．It may exist at the center of X-rays. D．It may exist at the center of a galaxy.
【单选题】When Voltaire was in England, ______.
A.
he got to know Catherine Barton
B.
he popularized the apple story
C.
he began to hear of Newton's discoveries
D.
he went through Newton's death
【单选题】当空气的相对湿度为100%时，湿空气的干球温度t、湿球温度tw和露温度td三者的关系是（）
A.
t＝tw＝td
B.
t＞tw＞td
C.
t＜tw＜td
D.
t＞tw＝td
【简答题】未饱和湿空气的干球温度t、湿球温度tw、温度td三者关系为（）。
【单选题】对于未饱和湿空气，湿空气的干球温度t、湿球温度tw和露点温度td的关系为（ ）。
A.
t > t w> t d
B.
t > t w= t d
C.
t = t w> t d
D.
t = t w= t d
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