单项选择题

某公司2019年年末的流动资产为800万元，其中金融性流动资产为300万元；流动负债为400万元，其中金融性流动负债为200万元；经营性长期资产为650万元，经营性长期负债为260万元。则2019年年末该公司的净经营资产为（　　）万元

A．580
B．690
C．790
D．950
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单项选择题
初产妇，25岁，孕足月出现规律性宫缩，1小时后来院，由于宫缩过强，立即将产妇放在产床上，未来得及消毒及保护会阴，胎儿急速娩出，正处理婴儿时，见阴道有较多血流出。腹部检查：子宫收缩良好。此产妇于胎盘娩出后，持续阴道出血，检查发现胎盘不完整，那么首选的措施为
A．按摩子宫，止住出血
B．阴道内填塞纱布止血
C．监视生命体征，注意观察尿量
D．宫腔探查
单项选择题
Please judge, which way of pricing is not good? A、A cup of coffee is priced at 24 yuan. Recharge for two cups and you will get one cup for free. B、One box of disposable medical masks with a set sale of 5 boxes costs 15 yuan; one box with a set sale of 20 boxes costs 50 yuan; and one box with a set sale of 50 boxes costs 98 yuan. C、The annual super VIP fee of the take-out app is 299 yuan, enjoying punctual arrival service, while the annual ordinary VIP fee is 88 yuan. D、A supermarket holds a grand bargain for opening of an online fresh food store, which regulates if you recharge 100 yuan and you can get 300 yuan free.
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