招股说明书引用的经审计的最近一期财务会计资料在财务报告截止日后六个月内有效。此期限不得延长。( )
参考答案:错
解析: 最多可以延长1个月。
作用持续时间最长的局麻药为()
A.普鲁卡因酰胺
B.地布卡因
C.卡波卡因
D.丁吡卡因
E.丙胺卡因
There _____ a lot of people at the street corner when it happened. [ ]
A. are
B. is
C. were
D. was