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问题 单项选择题

烟草专卖品出口业务的程序包括催证、审证、备货、（）等环节。

A．检验、报关、发运、制单结算

B．检验、报关、出关、制单结算

C．托运、报关、发运、制单结算

D．检验、托运、报关、发运

答案

参考答案：C

单项选择题

The relational database model requires the data be (71) through programs that don’t rely on the position of the data in the database. This is in direct (72) to the other database mode, where the program has to follow a series of pointers to the data it seeks. A program (73) a relational database simply asks for the data it seeks; the DBMS performs the necessary searches and (74) the information. The (75) on how the search is done are specific to the DBMS and vary from product to product.

（75）处填（）。

A．details

B．documents

C．tails

D．tenants
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问答题 简答题

负荷甩至零，发电机未解列时有哪些主要象征？
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