【单选题】The cookies each _____________ letters. [ ]
【简答题】Are you going downtown this afternoon? I am going to have these letters mail . A B C D ____________
【简答题】下列关于阿司匹林药理作用的描述,正确的是
【单选题】下列关于阿司匹林的描述,不正确的是( )
B.
其解热、镇痛、抗风湿作用与其抑制PG生物合成有关
【单选题】You ______ all morning, but you ______ three letters!
A.
have been typing, have only done
C.
had been typing, have only done
D.
have typed, have only done
【单选题】下列关于阿司匹林的描述,错误的是
A.
对所有诊断为冠心病或缺血性脑卒中的患者均应长期服用阿司匹林
B.
冠状动脉移植术后长期服用阿司匹林每日100mg
C.
阿司匹林为50岁以上心肌梗死患者的一级预防用药
E.
推荐在溶栓治疗24h内应用阿司匹林作为辅助治疗