急性心肌梗死3天的患者，突然感到呼吸困难，伴心悸，不能平卧。体检：口唇发绀，强迫端坐位，两肺中、下部可闻及中、小水泡音，心率120次／分，律齐，以下哪项体征对合并 * * 肌功能失调的诊断最有意义（）。

A.胸骨左缘第三、四肋间可触及收缩期震颤

B.胸骨左缘第三、四肋间可闻及心包摩擦音

C.心尖区收缩中、晚期喀嚓音和收缩晚期杂音

D.血压下降

E.心浊音界向左扩大

Management information systems form a bedrock ofIT use in the public sector. They are therefore found in all sections ofthe public sector and in all countries..Of course， different people use the term "management information system" differently: The term should therefore not form the basis for arguments about  （） an MIS is and is not. So long as one and those with whom one works understand and agree on a definition， that is good enough.Similarly， when dealing with written material， one needs to be able to（）and communicate， not get locked into doctrinal debate，

Many public service providers have developed management information systems to morutor and control the services that they provide. Both the US （） UK Social Security agencies have developed MIS to report on the welfare payments and services that they provide . The British public healthcare system has also been a major investor in MIS as it 1ries to control healthcare costs and simultaneously improve delivery standards .

Individual schools can also（）use ofMIS. Hobmoor Junior and Infant School， a public school in Birmingham， UK， introduced a computerised attendance system to produce MIS reports that monitor pupil attendance. This improved the Principal’s ability to understand and control absence patterns， resulting in a 2.5 per cent （） in attendance rates.

This improved the Principal’s ability to understand and control absence patterns， resulting in a 2.5 per cent （） in attendance rates.

A．pass

B．increase

C．decrease

D．rise