There are 3 types of package marking, which one will contain “Country of origin”?
A. Shipping mark
B. Handling instruction
C. Handling mark
D. Information mark
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There are 5 types of warehouses, which one is controlled by government before the products are distributed to the market?
A. Bulk storage warehouse
B. Special commodity warehouse
C. General merchandise warehouse
D. Bonded warehouse
What are the requirements of transportation? Cost, speed and ( ).
A. time
B. place
C. consistency
D. personnel
Z4-01-04关于刚体对轴的转动惯量，下列说法中正确的是
A. 只取决于刚体的质量,与质量的空间分布和轴的位置无关
B. 取决于刚体的质量和质量的空间分布，与轴的位置无关
C. 只取决于转轴的位置，与刚体的质量和质量的空间分布无关
D. 取决于刚体的质量、质量的空间分布和轴的位置
Z4-01-06几个力同时作用在一个具有光滑固定转轴的刚体上，如果这几个力的矢量和为零，则此刚体
A. 必然不会转动
B. 转速必然不变
C. 转速必然改变
D. 转速可能不变，也可能改变
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