患者女,60岁,主因“间断心前区疼痛1天”就诊。1天前因劳累后出现心前区疼痛,自服硝酸甘油后可缓解,既往冠心病史5年。查体:患者意识清楚,精神不振,心前区间断疼痛,刺痛固定不移,痛有定处,夜间痛发频繁,言语流利,无发热,舌紫黯有瘀斑,脉涩。四肢肌力Ⅴ级,肌张力正常,四肢生理反射存在,病理征(-)。提示心电图:前壁心肌缺血,下壁ST段弓背抬高。患者6小时前曾出现剧烈胸痛,30分钟后症状消失。为明确诊断应立即进行的检查项目是()
A. 动态心电图监测
B. 冠状动脉造影
C. 血液心肌酶检查
D. 心脏超声
E. 胸部CT
F. 踏车运动试验
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You work as a database administrator for Certkiller .com. Users complain that their query is taking a long time to complete. You suspect the database buffer cache size to be the reason, and you define an alert to be generated when the buffer cache hit metric goes below 85%. When you observe the dynamic performance views, you find that the buffer cache hit ratio is 81% but no alerts are being generated. What could be the reason for this problem?()
A. The advisory memory has been turned off.
B. The DB_CACHE_ADVICE parameter has been set to OFF in the parameter file.
C. The STATISTICS_LEVEL parameter has been set to BASIC in the parameter file.
D. The TIMED_STATISTICS parameter has been set to FALSE in the parameter file.
E. The STATISTICS_LEVEL parameter has been set to TYPICAL in the parameter file.
患者,男,51岁,在某基层医院行鼻中隔矫正及下鼻甲部分切除术时因鼻腔出血严重未完成手术即行鼻腔填塞,术后2天抽出鼻腔填塞物后患者又再度出血,行前鼻孔填塞后止血效果仍然不佳,且患者全身情况逐渐衰竭,遂转至某大医院,转入时,患者神志模糊,不时从口中吐出血液,测血压为70/50mmHg。该患者在经过积极治疗后,病情稳定,全身情况好转,抽出前后鼻孔填塞物后,见鼻中隔左偏明显,鼻腔有伪膜及血痂,无活动出血,可采取下述进一步的处理措施()
A. 血管造影
B. 鼻-鼻窦CT检查
C. 择期再次行鼻中隔矫正术
D. 鼻内镜探查
E. 包括鼻在内的头部磁共振检查
F. 一侧颈外动脉结扎
某化妆品店2016年10月委托某化妆品加工厂加工A类化妆品10套,化妆品店提供原材料成本为30000元,支付不含税加工费8500元,受托方A类化妆品不含税售价为5400元/套;另外委托其加工新型B类化妆品5套,该化妆品店提供原材料成本为40000元,支付不含税加工费10000元,由于B类化妆品为一种新型化妆品,受托方无同类售价。当月将委托加工的化妆品全部收回入库,受托方未履行代收代缴消费税义务。则化妆品店就该业务应补缴消费税()元。(化妆品消费税税率为30%)
A. 37628.57
B. 0
C. 37928.57
D. 39728.57
当直线线段平行于投影面时,它的投影是(),线段垂直于投影面时,它的投影(),当线段倾斜于投影面时,它的投影是()。