脾胃热盛所致沙眼常用的方剂是（） A.银翘散加减 B.除风清脾饮加减 C.归芍红花散

如图所示，一导线弯成半径为a的半圆形闭合回路。虚线MN右侧有磁感应强度为B的匀强磁场。方向垂直于回路所在的平面。回路以速度v向右匀速进入磁场，直径CD始络与MN垂直。从D点到达边界开始到C点进入磁场为止，下列结论正确的是

A．感应电流方向不变 　

B．CD段直线始终不受安培力 　

C．感应电动势最大值E＝Bav 　

D．感应电动势平均值

如图甲所示，在变压器的输入端串接上一只整流二极管D，在变压器输入端加上如图乙所示的交变电压u₁=U_msinωt，设t=0时刻为a“+”、b“-”，则副线圈输出的电压的波形（设c端电势高于d端电势时的电压为正）是下图中的（　　）

A．

B．

C．

D．

The purpose of the requirements definition phase is to produce a clear, complete, consistent, and testable (46) of the technical requirements for the software product.
During the requirements definition phase, the requirements definition team uses an iterative process to expand a broad statement of the system requirements into a complete and detailed specification of each function that the software must perform and each (47) that it must meet. The starting point is usually a set of high-level requirements from the (48) that describe the project or problem.
In either case, the requirements definition team formulates an overall concept for the system and then defines (49) showing how the system will be operated, publishes the system and operations concept document, and conducts a system concept review (SCR).
Following the SCR, the team derives (50) requirements for the system from the high-level requirements and the system and operations concept. Using structured or object-oriented analysis the team specifies the software functions and algorithms needed to satisfy each detailed requirement.

A．detailed

B．outlined

C．total

D．complete

一般情况下，为什么发达国家的地方政府支出增长超过发展中国家？