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问题 选择题

下列有关祖冲之在数学领域取得巨大成就原因的说法，不正确的是[ ]

A．从小就对数学研究兴趣浓厚

B．反复演算

C．注意学习前人的成就，但不迷信古人的说法

D．他生下来就是数学天才

答案

D

填空题

用一批布料做校服，每套校服用布3米，可做50套；如果每套用布2.5米，则可做60套．在这道题中，______一定，每套用布米数和可做的套数成______比例．
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单项选择题

The relational database model requires the data be (110) through programs that don’t rely on the position of the data in the database. This is in direct (111) to the other database mode, where the program has to follow a series of pointers to the data it seeks. A program (112) a relational database simply asks for the data it seeks; the DBMS performs the necessary searches and (113) the information. The (114) on how the search is done are specific to the DBMS and vary from product to product.

（114）是（）

A.details

B.documents

C.tails

D.tenants
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