来源于木通科的中药材有()
A.大血藤
B.木通
C.通草
D.苏木
E.鸡血藤
参考答案:A, B
Assuming the economy currently is experiencing high inflation, an example of appropriate discretionary fiscal policy is:()
A. increase the federal funds target rate.
B. reduce government expenditures on major government construction projects.
C. reduce the money supply.
芳烃精馏的基本原理是什么?