某校在做CO还原CuO的实验时,各小组分别设计了以下四套实验装置。
请你从防止空气污染、节约能源的角度分析:最不理想的实验装置是____,最合理的实验装置是_____。
A;D
Mary couldn’t help but _____ in despair, staring at the fox which had blood-red eyes and seemed _____ her.
A.feeling; to be watching
B.feel; watching
C.feel; to be watching
D.to feel; to have watched
冠状动脉造影的适应证有()
A.药物难以控制的心绞痛或休息时也有严重的心绞痛发作
B.近期心绞痛症状加重
C.心电图运动试验(+)
D.双嘧达莫-铊闪烁照相存在可逆性缺损
E.超声心动图应激试验有异常