苇茎汤主治________证，而主治湿热肠痈之代表方剂为________。

科学探究的三个要素依次是明确的        、实验的       、还要有结果。

（8分）A、B、C均为有机物，且 1mol B与碳酸氢钠反应生成2mol的二氧化碳。A、B、C有如图所示的转化关系：

试回答：

（1）写出A的结构简式________________________；

（2）写出B与C按物质的量之比1:1反应生成D的化学方程式_____________________，反应类型为               ；

（3）写出C₃O₂的结构式                                。

Which of the following statements regarding capitalization and expensing of intangible assets is least accurate Based on U. S. generally accepted accounting practices (GAAP) :（）

A. computer software development costs to establish the technological or economic feasibility of software are expensed, but subsequent costs can be capitalized.  

B. purchased patent and copyright costs are expensed.  

C. research and development costs are expensed when incurred.

位置公差包括直线度.平面度.椭圆度.圆柱度.线轮廓度和面轮廓度。

下列哪种成分不是品德的心理结构（）

A．道德认知

B．道德观念

C．道德情感

D．道德行为