2017年春节前，某房地产开发商到某区副区长家拜年，送给该区长女儿1万元现金作为压岁钱，该区长将价值1000元的茶叶回赠给该开发商，这种行为属于正常礼尚往来。
关于气密性试验过程，以下正确的是（） 可以先做气密性试验，再做满水试验。 试验压力为池体工作压力的1.5倍。 测读池内气压同步应测读池内温度及大气压力。 测读池内气压初读数与末读数的时间间隔为24h。 允许气压降为：24h池内气压下降不超过试验压力的20%。
You are the network administrator for All network servers run Windows Server 2003. A server named PrintTK1 has a print device directly connected to the parallel port. The print device is shared for use by all users. Peter is the IT manager. Peter reports that his documents are often printed after documents submitted by other users. You need to ensure that Peter's documents take precedence over documents submitted for printing by other users. However, if a document is already printing, the printing must not be interrupted. What should you do?（） Configure the printer permissions to assign the Allow - Take Ownership permission to Peter. Restart the Print Spooler service on PrintTK1.。 Make Peter's user account the owner of the printer. Restart the Print Spooler service on PrintTK1.。 Create a new printer on PrintTK1 and configure it to print to the print device. In the Advanced tab of the new printer properties, select the Print directly to the printer option. Configure Peter's computer to print to the new printer.。 Create a new printer PrintTK1 and configure it to print to the print device. Modify the priority of the new printer. Configure Peter's computer to print to the new printer.。
血液的ABO血型凝集原检验法，确定为O型者检验时表现为（）。 抗A凝集素与被检红细胞不发生凝集；。 抗B凝集素与被检红细胞发生凝集；。 抗H凝集素与被检红细胞发生凝集；。 抗A、抗B、抗H凝集素均不与被检红细胞发生凝集。。
自2013年8月起，5年内，各级党政机关一律不得以任何形式和理由新建楼堂馆所，已批准但尚未开工的楼堂馆所项目，可以建设。
对立统一规律揭示的是事物的（）
