博特钻石多产于（）。
A.印度
B.巴西
C.南非和巴西
D.南非与博茨瓦纳
参考答案：D
It was in the stone house _____ was built as a school by local villagers _____ the boy finished
his primary school. [ ]
A. which; that
B. that; where
C. which; where
D. that; which
先天性风疹综合征的诊断条件，以下哪项是错误的
A．妊娠早期母亲可能患风疹或有明确风疹接触史B．出生后婴儿血中有抗风疹特异性IgM抗体C．新生儿有一种或几种先天性畸形的表现D．新生儿体内可分离出风疹病毒E．出生后婴儿血中有抗风疹特异性IgG抗体
