如果规模报酬不变,长期平均成本等于边际成本且不变。( )
参考答案
参考解析
【C型选择题】
患者,女,30岁。经后血虚,为阴血耗损,阴不维阳,阳气无所依附,致肌热面赤,烦渴欲饮,舌淡,脉洪大而虚,按之无力,为气血两虚证。处方当归补血口服液。当归补血口服液的功能是( )
益气健脾
养心安神
调经舒郁
补养气血
行气止痛
【单选题】
It was just at the moment______ he worked out the problem that he had long been puzzled about.
since
which
because
that
【B型选择题】
炒苍耳子炮制作用是( )
缓和寒滑之性,以免伤中
缓和辛散走窜之性,以免耗气伤阴
降低毒性,药性温和,免伤正气
缓和药性,有香气,消食除胀,降气化痰
降低毒性,通鼻窍,祛湿止痛