下列哪种情况需做产前诊断（）。
A.初产妇年龄33岁
B.配偶年龄33岁
C.初产妇年龄36岁
D.配偶年龄36岁
参考答案：C
This dictionary______ Tom's. It has Ann's name on it
A. might be B. may he C. can't be
青霉素与红霉素合用：
A．无关B．相加C．协同D．拮抗E．耐药
s dictionary______ Tom's. It has Ann's name on it