If the book price happens to be an attribute, then it can occur at most once per book element.

如果bookprice是属性，则该属性在每个book元素至多出现一次。

youdao

When tilling out the return, if the amount per book does not coincide with the self-adjusted amount according to the law, the supporting documents about the adjusted items should be submitted.

本表填写时，帐载金额与自行依法调整后金额不符的，还应同时报送调整项目的附表。

youdao

When tilling out the return, if the amount per book does not coincide with the self-adjusted amount according to the law, the supporting documents about the adjusted items should be submitted.

本表填写时，帐载金额与自行依法调整后金额不符的，还应同时报送调整项目的附表。

youdao