下列典籍中,最先提出痰饮名称的是()
A. 仁斋直指方
B. 景岳全书
C. 金匮要略
D. 临证指南医案
E. 黄帝内经
下列进行适当的组合投资时,常常能较好地分散投资风险,因此被视为组合投资中不可或缺的重要组成部分的是( )。
A. 债券基金,保本基金
B. 保本基金,股票基金
C. 债券基金,股票基金
D. 混合基金,股票基金
He has just broken his leg. He knows that a trip to Europe this winter is()
A. in question
B. without question
C. beyond question
D. out of the question
The formula i+1 put forward by Krashen means input that contains structures ______ the learner's present level.
A. greatly above
B. greatly below
C. somewhat above
D. somewhat below