下列哪项能完全排除完全性葡萄胎的诊断
A.停经后 * * 出血B.子宫大于妊娠月份C.妊娠试验阴性D.超声多普勒闻及胎心搏动E.卵巢黄素化囊肿
参考答案:D
More and more people have a low-C life and the air is getting much
than a few years ago.
A.clean
B.cleanest
C.cleaner
D.the cleanest
天车轮的报废标准是什么?