下列哪种形式为先天性胰胆合流异常().
A.胰管垂直与胆管相交
B.胆管垂直与胰管相交
C.共同管长度>5cm
D.胆、胰管交角<30°
E.以上均不对
参考答案:A, B, C, D
.He thought she was a pretty girl_______poorly she was dressed.
A.how
B.as though
C.as long as
D.however
按材料及施工方式不同分类,墙面装修可分为()、()、()、()、和()等五大类。