胃脘痛饮食伤胃证的治法为
A．四七汤B．柴胡疏肝散C．理中汤D．附子理中汤E．补中益气汤
参考答案：A
过椭圆x2+2y2=2的焦点引一条倾斜角为45°的直线与椭圆交于A、B两点，椭圆的中心为O，则△AOB的面积为______．
A．Relocating people from an earthquake-prone province.
B．Constructing more posts to predict about earthquakes.
C．Economizing on electricity nationally.
D．Building a hydropower plant.
