The ABC's broadcasting of conventions is said to______.
A. concentrate mainly on the range of morning time
B. conduct a detailed review to the whole elections
C. include nearly everything through its digital service
D. utilize its exclusive technology and facilities
真核生物染色质DNA的三级结构是
A. 超螺旋
B. 结构域
C. 锌指结构
D. 核小体
E. 无规卷曲
上消化道大出血休克时，首先的治疗措施是
A. 放置胃管注入止血药物
B. 平卧位，下肢抬高并子吸氧
C. 紧急胃镜止血
D. 积极补充血容量
E. 静脉注入奥美拉唑
判断心脏骤停迅速简便的方法是
A. 触摸大动脉搏动存在否
B. 测量有无血压
C. 作心电图检查有无心电活动
D. 看瞳孔散大否
E. 看呼吸存在否
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