单选题：In Jamestown, visitors can walk through the real ships the

题目内容：

In Jamestown, visitors can walk through the real ships the colonists used. A．Right
B．Wrong
C．Not mentioned

参考答案：

答案解析：

工程竣工验收报告经发包人认可后（　　）天内承包人向发包人提交竣工结算报告及完整的竣工结算材料。

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