男性，20岁。哮喘重度急性发作前来急诊。体检见张口、端坐呼吸，大汗淋漓，叙述病史仅能说些单词或短语而不连贯。为评价病情，下列体征中哪一项预示病情严重（）

A.两肺广泛高响度哮鸣音

B.两肺呼吸音低，偶闻散在哮鸣音

C.肋间隙增宽

D.肺叩诊过清音

E.心脏绝对浊音界缩小

The efficient market hypothesis implies that fundamental analysis:（）

A. is inferior to technical analysis because fundamental analysis is not timely. 

B. requires the analysis to predict movements in relevant variables that affect rates of return. 

C. will be successful if transaction costs are minimized by focusing on a limited number of large-capitalization stock