周围型肺癌CT三维重建可有以下显示，错误的是（）。
A.肿块分叶
B.胸膜凹陷
C.肿块累及胸膜
D.肿块与血管的关系
E.清晰显示纵隔淋巴结
参考答案：E
患者男，50岁，主诉阵发性腹痛腹胀5小时，查体全腹膨隆，弥漫轻压痛，听诊可闻及气过水声，首先考虑的诊断为（）。
A.肠套叠
B.肠扭转
C.机械性肠梗阻
D.绞窄性肠梗阻
E.动力性肠梗阻
Which of the following fractions expressed in the form
is most nearly approximated by the decimal PQ, where P is the tenths’ digit and Q is the hundredths’ digit
is most nearly approximated by the decimal PQ, where P is the tenths’ digit and Q is the hundredths’ digit