减少翼状胬肉复发的手段中，不包括（） A.结膜自体移植 B.局部应用丝裂霉素C C.

已知f（x）=x³+3x²-9x+1，

（1）求f（x）的单调区间和极值．

（2）求f（x）在区间[-4，4]上的最大值与最小值．

An application architecture specifies the technologies to be used to implement one or more information systems. It serves as an outline for detailed design, construction, and implementation. Given the models and details, include（） , we can distribute data and processes to create a general design of application architecture. The design will normally be constrained by architecture standards, project objectives, and （）. The first physical DFD,to be drawn is the （） . The next step is to distribute data stores to different processors. Data （）are two types of distributed data which most RDBMSs support. There are many distribution options used in data distribution. In the case of （），we should record each table as a data store on the physical DFD and connect each to the appropriate server.

In the case of （），we should record each table as a data store on the physical DFD and connect each to the appropriate server.

A.  storing all data on a single server

B.  storing specific tables on different servers

C.  storing subsets of specific tables on different servers

D.  duplicating specific tables or subsets on different servers

关于膈的说法错误的是( )

A．中心部为腱性结构
B．有三个裂孔
C．迷走神经通过其食管裂孔
D．收缩时，膈穹窿上升，助呼气
E．胸导管通过其主动脉裂孔

早期食管癌最好的诊断方法是

A．食管拉网细胞学检查
B．钡餐检查
C．食管镜检查治疗
D．颈淋巴结活检
E．纤维胃镜

供配电系统高、低压供配电应符合现行国家、行业标准和规范，三相供电电压不平衡度不大于（）。

A、3%

B、5%

C、4%

D、2%