多选题“有证标准物质”，美国习惯用Standard Reference Material又称SRM，必须由（）进行制造。A国家计量部门B由它控权的单位C厂商自造D委托其它厂制造
多选题
“有证标准物质”，美国习惯用Standard Reference Material又称SRM，必须由（）进行制造。
A
国家计量部门
B
由它控权的单位
C
厂商自造
D
委托其它厂制造
参考解析
解析：
暂无解析
相关考题：
Standard of purchased material:A Simplifies inventory controlB reduces the risk of obsolescenceC reduces cost of purchasing and storageD All of the above.E A and C only.
105 Standard of purchased material:A. Simplifies inventory controlB. reduces the risk of obsolescenceC. reduces cost of purchasing and storageD. All of the above.E. A and C only
"Insufficiency of manning or insufficiency of certification of seafarers" is an identification of aA.substandard shipB.standard shipC.over-standard shipD.reference ship
In the ship construction portfolio，materials which do not conform to ASTM or ABS specifications must also include the ______.A.chemical and physical properties of the materialB.name of the alternative standard or specificationC.the ASTM or ABS specification the material approximatesD.manufacturer or origin of the material
N Company manufactures a kind of product used throughout the machinery industry.The standard price of the materials for the products is $ 6 per kilogram; the standard quantity of materials allowed per unit is 1.5 kilograms. During July, 2 000 units of the products were finished, for which 3 200 kilograms of materials were used at a total direct material cost of $ 18 560.Requirment :A. Calculate the direct material price variance for July. Indicate whether it is favorable (F) or unfavorable (U) and who is generally responsible for this variance.B. Calculate the direct material quantity variance for July. Indicate whether it is favorable (F) or unfavorable (U) and who is generally responsible for this variance.C. Calculate the total direct material cost variance for July. Indicate whether it is favorable (F) or unfavorable (U).
在选择和使用有证标准物质时，下列说法中错误的是（）。A、要选择和使用经国家批准、颁布的有证标准物质B、要尽可能选择级别高的有证标准物质C、要在有证标准物质的有效期限内使用标准物质D、要选择与待测样品的基体组成和待测成分的含量水平相类似的有证标准物质
企业、事业单位制造标准物质，需向（）计量行政部门，申请办理（）。A、省级以上人民政府，《制造标准物质许可证》B、国务院，《制造标准物质许可证》C、省级以上人民政府，《制造计量器具许可证》D、国务院，《制造计量器具许可证》
美国国家标准局（NBS）和美国国家标准协会（ANSI）发布数据加密标准DES（Data Encryption Standard）的年份是（）A、1976年B、1977年C、1979年D、1980年
单选题In the ship construction portfolio，materials which do not conform to ASTM or ABS specifications must also include the（）.Achemical and physical properties of the materialBname of the alternative standard or specificationCthe ASTM or ABS specification the material approximatesDmanufacturer or origin of the material
单选题企业、事业单位制造标准物质，需向（ ）计量行政部门，申请办理（ ）。A省级以上人民政府，《制造标准物质许可证》B国务院，《制造标准物质许可证》C省级以上人民政府，《制造计量器具许可证》D国务院，《制造计量器具许可证》
单选题The MOST important feature of the material used for making the binnacle of a standard magnetic compass is that it is（）.AnonmagneticBweatherproofCcorrosion resistantDcapable of being permanently affixed to the vessel
单选题根据《标准物质管理办法》，企业、事业单位制造的标准物质新产品，应进行定级鉴定，并经评审后取得的证书是( )。A标准物质鉴定证书B标准物质检定证书C标准物质定级证书D标准物质制造计量器具许可证