A.compassionate
B.sensational
C.rational
D.emotional

患者，男，45岁。4小时前感上腹部胀痛伴恶心，呕吐一次为胃内容物，l小时以来右侧腹痛，有便意但未能排便，疑似急性阑尾炎。下列体征中，对确诊最有价值的是
A．体温37.8℃
B．McBurney点压痛
C．腰大肌征阳性
D．Rovsing征阳性

The best title for this article perhaPs is_______．
A.The Myth of Desegregation
B.The Prison Boom in America
C.The Decline of Racial Equality
D.The Distorted News Report

设函数f（x)在（-∞，+∞)内连续，其导数图形如图所示，则在（-∞。，+∞)内
A.函数，f（x)有三个极值点，曲线y=f（x)有两个拐点．
B.函数，f（x)有四个极值点，曲线y=f（x)有一个拐点．
C.函数f（x)有三个极值点，曲线y=f（x)有一个拐点．
D.函数f（x)有四个极值点，曲线y=f（x)有两个拐点．

The new form. of segregation in Paragraph 3 means that______．
A.the black and white are confined separately in the prison
B.the black is shut away from the mainstream society
C.many black people are locked in prison located in white community
D.many black people released from the prison stay in white community

It can be inferred from the passage that LinkedIn is
A.a local company in Japan who wants to follow Facebook’s suit
B.a social network adopting real—name policy
C.a data processing company analyzing social networks
D.a very successful social network in America only second to Facebook