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问题 单项选择题

根据肌瘤与子宫壁的关系分为肌壁间、浆膜下、黏膜下肌瘤3类，下列百分率哪个是属肌壁间的()

A．10%～15%

B．25%～50%

C．60%～70%

D．50%

E．20%

答案

参考答案：C

单项选择题

同步发电机的（）随负载变化而变化的特性称为调节特性。

A.端电压

B.励磁电流

C.电磁转矩

D.电磁功率
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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.

A．details

B．documents

C．tails

D．tenants
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