肠系膜静脉血栓引起的肠梗阻属于( )。
A.单纯性肠梗阻B.绞窄性肠梗阻C.机械性肠梗阻D.动力性肠梗阻E.血运性肠梗阻
参考答案:E
解析:[知识点] 肠梗阻的临床表现
— What do you suppose ______ her look so upset?
—______ by her boyfriend again.
A.making ; Misunderstood
B.had made ; Being misunderstood
C.made ; Having been misunderstood
D.has made ; Misunderstood
为什么有时下钻中途要循环钻井液?