【单选题】两组列车在同方向行驶时,其间隔距离不得小于()m。
【简答题】两组列车在同方向行驶时,其间隔距离不得小于 [____]m
【判断题】糖的变旋现象是由于糖在溶液中与其它物质起了化学反应。
【单选题】Which of the following statements about budgeting and motivation are true? (1) A target is more motivating than no target at all (2) The problem with a target is setting an appropriate degree of diffi...
【多选题】You set the following parameters in the parameter file and restarted the database:MEMORY_MAX_TARGET=0MEMORY_TARGET=500M PGA_AGGREGATE_TARGET=90MSGA_TARGET=270M Which two statements are true about thes...
A.
The MEMORY_MAX_TARGET parameter is automatically set to 500 mb.
B.
The pga_AGGREGATE_TARGET and sga_TARGET parameters are automatically set to zero.
C.
The value of the MEMORY_MAX_TARGET parameter remains zero until it is changed manually.
D.
The lower bounds of pga_AGGREGATE_TARGET and sga_TARGET parameters are set to 90 nb and270 mb, respectively
【单选题】After a year's training, I'm sure he will _______ the target.
【单选题】林女士,59岁,3小时前胸骨后压榨样疼痛发作,伴呕吐、冷汗及濒死感而入院。护理体检:神志清,合作,心率112次/分,律齐,交替脉,心电图检查显示有急性广泛性前壁心肌梗死。在监护过程中护理人员发现林女士烦躁不安,面色苍白,皮肤湿冷,脉细速,尿量减少,应警惕发生
【单选题】林女士,59岁,3小时前胸骨后压榨样疼痛发作,伴呕吐、冷汗及濒死感而入院。护理体检:神智清,合作,心率112次/分,律齐,交替脉,心电图检查显示有急性广泛性前壁心肌梗死。 林女士存在的最主要护理问题是
【单选题】()结合了负载和压力测试的过程,即逐渐增加并发用户负载,直到系统的瓶颈或者不能接收的性能点,通过综合分析交易指标、资源监控指标等来确定系统并发性能的过程。