侵蚀性葡萄胎的诊断依据是( )
A．β-HCG定量测定
B．病理分级
C．葡萄样水泡状物的大小
D．子宫囊肿的大小
E．是否侵入子宫肌层
参考答案：E
Barack Obama delivered a speech to 500 local youths during his visit to China, many of were from Fudan University and Tongji University.
A．them
B．whom
C．which
D．those
在某乙之父向人民法院提起的诉讼中，下列有关本案当事人的诉讼地位的•表述正确的是( )。
A．某乙之父为原告
B．某乙为原告
C．某丙、某幼儿园为共同被告
D．某丙、某丙之父、某幼儿园、某甲为共同被告
