坚持实施积极的就业政策,以创业带就业,以(),推动创业型社会建设。
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The CALC function is used several times within the sales report. To simplify maintenance you want to store the function in one place and call it from within your PL/SQL trigger code. Which node would you use in object navigator to create a report level programme unit to store the function?()
A. Programme units.
B. PL/SQL libraries.
C. Database object.
D. Built in packages.
悬挂保护间隙应先将其与接地网可靠接地,再将保护间隙挂在导线上,并使其接触良好。拆除的程序与其相同。
A. 正确
B. 错误
《空调列车服务质量规范》行李车货仓保持干净,留有安全通道, 保证货物装卸和人员正常通行,货物堆码平稳、牢固、整齐,不堵塞车门,不超载、偏载、超限。
A. 正确
B. 错误