对于500m以上的较大的路由变更,设计单位应到现场与监理、施工单位协商,建设单位批准,并填写工程设计变更单。
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直到今天,在英国都没有成文的宪法。
A. 正确
B. 错误
What is necessary for your query on an existing view to execute successfully? ()
A. The underlying tables must have data.
B. You need SELECT privileges on the view.
C. The underlying tables must be in the same schema.
D. You need SELECT privileges only on the underlying tables.