缩窄性心包炎临床上可出现（）
A.动脉收缩压降低
B.静脉压升高
C.心律增快、奇脉
D.脉压差增宽
E.腹水
参考答案：A, B, C, E
It's high time you had your hair cut; it's getting _____. [ ]
A. too much long
B. much too long
C. long too much
D. too long much
有一根圆柱形铁管，管壁厚度为0.1m，内径为1.8m，长度为2m。若该铁管融化后浇铸成长方体，则该长方体的体积为（）。（单位：m³，π≈3.14）
A.0.38
B.0.59
C.1.19
D.5.09
E.6.28
