下列方剂中，用干姜的是( )
A．温经汤
B．半夏泻心汤
C．血府逐瘀汤
D．生化汤
参考答案：B
When I was walking past the window, I noticed Wang Fei __________ my homework. I really got __________.[ ]
A. copying; annoyed
B. copying; annoying
C. copy; annoyed
D. copied; annoyed
知识的获得是知识学习的第一阶段。在这一阶段，包括直观和概括两个环节。试结合实际，说明如何有效地进行知识概括。
