下列哪项不属于复诊产前检查
A.测量子宫长度
B.测量体重及腹围
C.询问前次检查后有无特殊情况出现
D.B型超声了解胎儿大小
E.听胎心率、复查胎位
参考答案:D
______does an individual find himself sought by both parties as their presidential candidate, as did General Eisenhower.
A.Not only
B.Sometimes
C.Rarely
D.If
简述病毒免疫逃逸的机制