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【简答题】
根据2010年统计数据,我国当前城乡居民收入差距比例为:
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参考答案:
举一反三
【判断题】An operator should listen to the caller's needs without interrupting.
A.
正确
B.
错误
【单选题】The following( )is a correct description of operator's precedence
A.
operator < arithmetic operator < assignment operator < logical operator
B.
logical operator < relational operator< arithmetic operator< assignment operator
C.
assignment operator< logical operator
D.
arithmetic operator
【单选题】During which condition should the operator of a pedestal crane shutdown operations ________.
A.
Bunkering barge alongside
B.
Potable water spill on deck
C.
Crane hydraulic hose bursts
D.
Trim greater than 4 feet
【判断题】卡诺热机的效率只与两个热源的温度有关而与工作物质无关。
A.
正确
B.
错误
【判断题】卡诺热机的效率只与两个热源的温度有关而与工作物质无关。()
A.
正确
B.
错误
【单选题】要一次选择整个列,在标签检查器中选择( )。
A.
tabe
B.
tr
C.
td
D.
th
【单选题】Which action(s)should the operator of a pedestal crane take if crane control is lost ().
A.
Let go of both control levers and return to neutral position
B.
Press the emergency stop
C.
Notify the mate on watch
D.
All of the above
【单选题】What is the action that a GMDSS Radio Operator should take when a DSC distress alert is received ________.
A.
No action is necessary,as the DSC control unit will automatically switch to the NBDP follow-on communications frequency
B.
The operator should immediately set continuous watch on the radiotelephone frequency that is associated with the frequency band on which the distress alert was received
C.
The Operator should immediately set continuous watch on VHF channel 70
D.
The Operator should immediately set continuous watch on the NBDP frequency that is associated with the frequency band on which the distress alert was received
【判断题】An operator should tell the guest's extension number to the caller.
A.
正确
B.
错误
【简答题】卡诺定理:1、再两个不同温度的热源之间工作的任意热机,以( )的效率为最大。2、卡诺热机的效率只与( )有关,而与( )无关。
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