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【单选题】
灌溉渠系的净流量与流量的比值称为（ ）A.
渠道水利用系数
B.
水利用系数
C.
田间水利用系数
D.
灌溉水利用系数
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皮皮学刷刷变学霸
举一反三
【单选题】The correction to KG for longitudinal free surface effects for a vessel can be found by dividing the vessel's displacement into the ______．
A.
Transverse free surface correction for the vessel
B.
Sum of the vertical moments of the vessel
C.
Sum of the longitudinal free surface moments of the vessel
D.
Longitudinal centerline of the vessel
【单选题】[6-13]___is not a longitudinal structural member.
A.
sideshell
B.
bottom shell plating
C.
inner bottom plating
D.
transverse bulkhead
【单选题】A vessel’s LCG is determined by ______.
A.
dividing the total longitudinal moment summation by displacement
B.
dividing the total vertical moment summation by displacement
C.
multiplying the MTl by the longitudinal moments
D.
subtracting LCF from LCB
【单选题】___resist the longitudinal deflection or the whole hull deformation.
A.
Longitudinal strength
B.
Transverse strength
C.
Shear force
D.
Vessel’s stability
【简答题】举例说明什么是纵向研究(Longitudinal study)。
【简答题】乡村俱乐部型的领导方式位于管理方格图的（ ）格。
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