以下哪项不是溃疡性结肠并发中毒性巨结肠的常见诱因().
A.低血钾
B.低血糖
C.钡灌肠
D.应用抗胆碱能药物
E.应用阿片类药物
参考答案:B
最长的胎头径线是
A.从有规律宫缩到胎儿娩出B.从有规律宫缩到宫口开全C.从有规律宫缩到胎盘娩出D.从宫口开全到胎儿娩出E.从胎儿娩出到胎盘娩出
This kind of food ________ in the restaurants today. [ ]
A. served wide
B. can be served wider
C. is served wider
D. is widely served