Listen and Fill in the blanks with what you hear. We are ______ 450 case and we have people, offices here from ______ different countries. T hey have __________ their cases to the table and we are ____________with them these most ________cases.
【简答题】澄江动物群是发现于我国云南澄江和晋宁地区____的一类无壳和有壳混生的动物群。A. 寒武系底部 B.震旦系顶部 C.奥陶系底部 D.志留系底部 × 正确答案:1 B. 滇东晋宁梅树村剖面是华南扬子区下寒武统标准剖面所在地,其下寒武统包括梅树村组、沧浪铺组、筇竹寺组和龙王庙组,它们从老到新排列顺序是:____。 C. 梅树村组—沧浪铺组—筇竹寺组—龙王庙组 D. 筇竹寺组—沧浪铺组—梅树村组—龙王...