刚体绕垂直于图面的O轴转动。若w=0,ε≠0,则通过O点的直线MN上各点的加速度分布图如图中()。 ["

","

","

","

"]
民航当局一般通过对航空器进行()检查来确认维修工程管理责任的落实。 ["适航性","符合性","年度","内部"]
甾体母核C17取代基为8~10个碳的脂肪烃的成分类型是() ["植物甾醇","胆汁酸","强心苷","蟾毒配基","甾体皂苷"]
题21图所示电路中,uS(t)为单位阶跃函数,R1=R2=2Ω,L=2H。电路的时间常数是()s。 ["0.25","0.5","2","4"]
关于猪油的叙述,正确的是() ["常温下呈液态","被称为油","被称为脂","单不饱和脂肪酸含量高","多不饱和脂肪酸含量高"]
中国加入WTO后所享有的主要权利包括哪些?