【单选题】患者, 50 岁,护理评估发现,子宫肌瘤 4 年,近 5 个月来,下腹部胀痛、尿频,排尿后自己能摸到增大的肿块。妇科检查:子宫底表面触及拳头大小包块,医生建议手术, 该患者最适当的处理是
【单选题】Harriet is lost and her parents are really________her.
C.
busy with d. worried about
【单选题】就微分学与积分学的起源而言 , 下列说法正确的是 ( )
【单选题】Harriet is lost and her parents are really _______ her. [ ]
【单选题】David doesn't want to swim because he is not _____ swimming. [ ]
【简答题】材料一、,“马可波多”号帆船在“大地岛”失踪,经过多年的研究,揭开了“死亡之谜”,他们都是死于亚声,这是一种人耳听不到的,频率很低的声音(人耳能听到声音的频率范围为20Hz-29KHz),而人的内脏的固有频率和亚声波极为相似,当二者相同时,会形成内脏的共振,严重时,把内脏振坏而丧生. (1)亚声是指我们学过的______(选填“超声”或“次声”) (2)从材料中可以看出,人们内脏的固有频率...