下列哪一项是对萨伊定律的最好描述?()
A.供给创造其自身的需求
B.需求创造其自身的供给
C.需求总是和供给相等
D.供给短缺将导致更大的需求
参考答案:A
符合阿米巴肝脓肿特点的是
A.病情急骤,全身脓毒症状明显B.多为黄白色脓液C.脓肿较大,多为单发D.血液细菌培养常为阳性E.血液检查无任何异常
Persons who have swallowed a non-petroleum based poison are given large quantities of warm soapy water or warm salt water to().
A.induce vomiting
B.absorb the poison from the blood
C.neutralize the poison in the blood
D.increase the digestive process and eliminate the poison