对某市工程技术人员进行普查,该市工程技术人员的工资收入水平是数量标志。(√)
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按经营主体不同,可将批发商业分为()、制造批发商、()、批兼零批发商、连锁批发商和商品代理商。
《钢质无缝气瓶定期检验与评定》(GB/T13004-2016)7.1.1规定,用直接目测或借助低倍放大镜目测检查气瓶时,应逐只检查瓶口螺纹有无()、腐蚀或其他机械损伤。
A. 锈迹
B. 裂纹
C. 变形
D. 磨损
Which of the following statements is correct with regards to the operation of a centrifugal cargo pump?()
A. Oil is discharged from the impeller through the outlet
B. Gravity causes the oil to flow toward the discharge
C. The self-priming feature of the centrifugal pump enables it to draw its own suction as it starts
D. The discharge capacity varies directly with the speed of the impeller
异议登记不当,造成权利人损害的,权利人可以向异议登记申请人请求损害赔偿。()
A. 正确
B. 错误