对生殖器结核诊断无特异性的是( )
A．子宫内膜病检
B．旧结核菌素试验阳性
C．盆腔X线检查
D．子宫输卵管碘油造影
E．腹腔镜检查
参考答案：B
—How many times have you been to the Site of Zunyi Meeting?
—In fact, it is the first time I ________here.
A．was
B．am
C．had been
D．have been
产品可靠性不需规定：（）。
A.时间
B.条件
C.功能
D.结构
