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【单选题】
在实际工作中企业一般应采用的财产物资盘存制度是 ( )。
A.
收付实现制
B.
权责发生制
C.
盘存制
D.
实地盘存制
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【单选题】飞机机翼上下表面出现的(),在垂直于(远前方)相对气流方向的分量,就是升力
A.
压强差
B.
压力差
C.
气流速度差
D.
气流行程差
【简答题】飞机机翼的横截面是楔形的.如图所示.当气流流过机翼上下表面时,上表面的流速 ____ 下表面的流速.因为流速越大的位置压强 ___ ,使 机翼的上下表面产生压强差.从而产生压力差,这就是飞机的升力.
【简答题】Fill in the blanks with the words given below. Change the form if necessary.(观看下方的微课可以帮助你完成此测试) Dear Sirs, I am writing to______ you that the goods your company shipped for us have not been supplied ...
【简答题】Task 1 Fill in the blanks with the words given below. inconvenience otherwise hearing but ask ensure shipment inform Dear Sirs, I am writing to____...
【单选题】This is the ( )(托运单)please complete it and sign your name.
A.
consignment  note
B.
form
C.
paper
D.
sheet
【简答题】The consignment ( 托运的货物 ) arrived yesterday, _3______ it contained only 10,000 batteries.
【简答题】Fill in the blanks with the words given below. Change the form if necessary. inconvenience otherwise hear but ask ensure shipment inform Dear Sirs, I am writing to 1 y...
【多选题】投诉信:根据提供的词语填空 (注意:只填写字母,一定用大写字母填写答案)
A.
inconvenience
B.
otherwise
C.
hear
D.
but
E.
ask
F.
ensure
G.
shipment
H.
inform Dear Sirs, I am writing to _____1____you that the goods your company shipped for us have not been supplied correctly. On 1 November 2013 we consigned (托运) 12,000 super long-life batteries to your company for ____2____. The consignment (托运的货物) arrived yesterday, ____3____ it contained only 10,000 batteries. This error put our firm in a difficult position, as we had to make some emergency purchases to fulfill our commitments to all our customers. This caused us considerable _____4_____. I am writing to ___5____ you to make up the shortfall immediately and to ____6____ that such errors do not happen again. _____7____, we may have to look elsewhere for shipment. I look forward to ____8_____ from you by return. Yours faithfully, Jack Walters Purchasing Officer
【单选题】当飞机起飞滑行时,机翼下表面的压力( )上表面,飞机就是在这个压力差的作用下实现了起飞。
A.
大于
B.
小于
C.
等于
【简答题】我国第一艘航空母舰己进行了多次海航测试。舰载飞机从航母滑跃起飞的过程中,以航母为参照物,飞机是 的。由于机翼的上下表面气流速度不同,存在压强差,使向上的升力 (选填“大于”、“等于”或”小于、”)飞机受到的重力,飞机就能升空。
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