对欧洲海上势力转变最关键的事件是()
A.荷兰成为“海上马车夫”
B.英国赢得“特拉法加”海战
C.西班牙无敌舰队覆灭
参考答案:B
Scientists say Vitamin D may be an effective way to _____ cancer but many people worldwide do not get
enough of it. [ ]
A. contribute to
B. set aside
C. guard against
D. hold on to
患者,男,54岁,压榨性中心性胸痛发作后3h就诊。查体:面色苍白,发汗。血压110/90mmHg,脉搏78次/分,心音正常。心电图示ST段抬高。实验室检查:钾3.2mmol/L,钠138mmol/L,尿素9.2mmol/L,CK90U/L。
首次生化检查时,增加何种项目是绝对必要的()。
A.CK-MB
B.LD
C.Mb
D.cTnI
E.AST