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【单选题】
蓄电池的液面高度不够时,应添加( )。A.
电解液
B.
蒸馏水
C.
自来水
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举一反三
【单选题】因旅行社原因造成旅游者未能乘坐预订的公共交通工具的,旅行社应赔偿旅游者的直接经济损失,并支付直接经济损失( )的违约金。
A.
10%
B.
20%
C.
30%
D.
50%
【简答题】波长为( )—( )μm的部分称为热红外线。我们周围的物体只有当它们的温度高达( )°C以上时,才能够发出可见光。相比之下,我们周围所有温度在绝对零度(-273°C)以上的物体,都会不停地发出热红外线。
【单选题】The fire and boat drills for a cargo ship should be ( ) once a month under normal conditions ．
A.
made out
B.
put up
C.
taken out
D.
carried out
【单选题】因旅行社原因造成旅游者未能乘坐预订的公共交通工具的,旅行社应赔偿旅游者的直接经济损失,并支付直接顾济损失( )的违金。
A.
10%
B.
20%
C.
30%
D.
50%
【单选题】Susan Gates thinks that the committee should include Robertson's because
A.
half of all graduates find jobs in retailing.
B.
the views of non-specialist employers need to be represented.
C.
it had more experience of employing graduates than IT companies.
【简答题】Once upon a time there were two good friends. One is a captain of a ship ,the other is a merchant (商人). The merchant had a young son，who wanted to be a sailor ，so the captain took him for voyages(航海) ...
【单选题】因旅行社原因造成旅游者未能乘坐预订的公共交通工具的,旅行社应赔偿旅游者的直接经济损失,并支付直接经济损失( ) 的违约金
A.
0.1
B.
0.2
C.
0.3
D.
0.5
【单选题】The Ship Security Alert System is checked once a month
A.
The SSAS is checked two times a month
B.
The SSAS is checked one time a month
C.
The SSAS is checked once a week
D.
The SSAS is checked every week
【单选题】On a ship，a fire drill shall be conducted once every（）.
A.
week
B.
month
C.
crew change
D.
other week
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