下列对争霸战争的作用表述不正确的是[ ]

A．加快了统一步伐

B．促进了民族融合

C．加速了新旧制度的更替

D．阻碍了社会的发展

根据句意和汉语注释，写出单词的正确形式。

1. Is this kind of digital camera ______ (可获得) in the nearest supermarket?

2. Your ________(建议)seem to be great help to me .I’ll take them.

3. All the people are waiting for the twins’ ______. ( 到达 )

4. I think the coats must belong to those ________(推销员)