设一次试验成功的概率为p,进行100次独立重复试验,当p=()时,成功次数的方差的值最大,其最大值为() ["1/2,25","1/2,50","1/2,5","1/4,25","1/4,5"]
X射线机穿透力的英文为() ["wire display","useful penetration","simple penetration","throughputrate"]
在我国境内6600米(含)以上空间内的管制空域属于() ["A类空域","B类空域","C类空域"]
经产妇,30岁,阴道分泌物增多,腰酸。妇科检查见宫颈重度糜烂,宫颈活检病理切片报告为"鳞状上皮化生"。应诊断为() ["宫颈非典型增生","原位癌","宫颈癌","宫颈息肉","慢性宫颈炎"]
下面属于汽车仪表及指示灯系统的是:() ["机油压力过低指示灯","气压过低警告灯","充电指示灯","转向灯"]
阶段计划的编制须掌握那些资料?