N型氯化聚乙烯——橡胶共混防水卷材断裂伸长率为（）。
A.≥400%
B.≥300%
C.≥250%
D.≥200%
参考答案：C
There _____ some eggs on the plate. But there _____ any bread on it. [ ]
A. are; aren't
B. are; isn't
C. is; isn't
《统计调查证管理办法》、《新闻出版统计管理办法》在性质上属于统计行政规章。( )
