近年国内外一致认为脑瘫的主要病因是()。 ["早产和低出生体重","脑缺氧缺血","胚胎早期阶段的发育异常","胆红素脑病","产伤"]
两样本均数比较,需检验H0:μ1,=μ2是否成立,可考虑用() ["方差分析","t检验","u检验","χ2检验","A.B.C.三种均可"]
引起休克性肺炎最常见的病原菌是() ["金黄色葡萄球菌","呼吸道病毒","革兰阴性杆菌","肺炎链球菌","真菌"]
对于慢性肾炎的临床表现下列哪项是错误的() ["轻、中度水肿","中等程度蛋白尿","高血压","不导致尿毒症","贫血"]
OSS的小区参数一致性校验功能在哪个功能模块中?() ["A、CNA","B、BSW","C、RNO","D、PMR"]
何谓牵拉肘?