麻黄汤的功用是
A．发汗祛湿，兼清里热B．宣肺解表，祛痰止咳C．发汗解表，宣肺平喘D．解表散寒，温肺化饮E．解肌发表，调和营卫
参考答案：C
He knows so much about Russia that he's universally acknowledged as a(n) _____ on Russian affairs.
A．authority
B．routine
C．privilege
D．boundary
揭示事物发展趋势和道路的规律是( )。
A．对立统一规律
B．质量互变规律
C．否定之否定规律
D．联系性与发展性相统一的规律
